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Lin J, Rosario J, Saltarelli N. Resuscitative Ultrasound and Protocols. Emerg Med Clin North Am 2024; 42:947-966. [PMID: 39326996 DOI: 10.1016/j.emc.2024.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
The management of patients in shock or arrest is a critical aspect of emergency medicine and critical care. Rapid and accurate assessment is paramount in determining the underlying causes and initiating timely interventions. This article provides a summary of essential ultrasound protocols for the critically ill patient including the extended focused assessment with sonography for trauma (EFAST), rapid ultrasound for shock and hypotension (RUSH), and sonography in hypotension and cardiac arrest in the emergency department (SHoC-ED).
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Affiliation(s)
- Judy Lin
- Department of Emergency Medicine, Baylor Scott & White All Saints Medical Center, 1400 8th Avenue, Fort Worth, TX 76104, USA.
| | - Javier Rosario
- Department of Emergency Medicine, University of Central Florida College of Medicine/HCA Florida Healthcare, 720 W Oak Street, Suite 201, Kissimmee, FL 34741, USA. https://twitter.com/javimedsimus
| | - Nicholas Saltarelli
- Department of Emergency Medicine, John Peter Smith Hospital, 1500 S Main Street, Fort Worth, TX 76104, USA
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Hong D, Choi H, Hong W, Kim Y, Kim TJ, Choi J, Ko SB, Park CM. Deep-learning model accurately classifies multi-label lung ultrasound findings, enhancing diagnostic accuracy and inter-reader agreement. Sci Rep 2024; 14:22228. [PMID: 39333570 PMCID: PMC11437088 DOI: 10.1038/s41598-024-72484-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 09/09/2024] [Indexed: 09/29/2024] Open
Abstract
Despite the increasing use of lung ultrasound (LUS) in the evaluation of respiratory disease, operators' competence constrains its effectiveness. We developed a deep-learning (DL) model for multi-label classification using LUS and validated its performance and efficacy on inter-reader variability. We retrospectively collected LUS and labeled as normal, B-line, consolidation, and effusion from patients undergoing thoracentesis at a tertiary institution between January 2018 and January 2022. The development and internal testing involved 7580 images from January 2018 and December 2020, and the model's performance was validated on a temporally separated test set (n = 985 images collected after January 2021) and two external test sets (n = 319 and 54 images). Two radiologists interpreted LUS with and without DL assistance and compared diagnostic performance and agreement. The model demonstrated robust performance with AUCs: 0.93 (95% CI 0.92-0.94) for normal, 0.87 (95% CI 0.84-0.89) for B-line, 0.82 (95% CI 0.78-0.86) for consolidation, and 0.94 (95% CI 0.93-0.95) for effusion. The model improved reader accuracy for binary discrimination (normal vs. abnormal; reader 1: 87.5-95.6%, p = 0.004; reader 2: 95.0-97.5%, p = 0.19), and agreement (k = 0.73-0.83, p = 0.01). In conclusion, the DL-based model may assist interpretation, improving accuracy and overcoming operator competence limitations in LUS.
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Affiliation(s)
- Daeeon Hong
- Department of Interdisciplinary Program in Bioengineering, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Hyewon Choi
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea
| | - Wonju Hong
- Department of Radiology, Hallym University Sacred Heart Hospital, 22, Gwanpyeong-Ro 170, Beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14068, Republic of Korea
| | - Yisak Kim
- Department of Interdisciplinary Program in Bioengineering, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Tae Jung Kim
- Department of Neurology and Department of Critical Care Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jinwook Choi
- Department of Interdisciplinary Program in Bioengineering, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Sang-Bae Ko
- Department of Neurology and Department of Critical Care Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
| | - Chang Min Park
- Department of Interdisciplinary Program in Bioengineering, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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3
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Lin C, Wang PP, Wang ZY, Lan GR, Xu KW, Yu CH, Wu B. Innovative integration of lung ultrasound and wearable monitoring for predicting pulmonary complications in colorectal surgery: A prospective study. World J Gastrointest Surg 2024; 16:2649-2661. [PMID: 39220059 PMCID: PMC11362956 DOI: 10.4240/wjgs.v16.i8.2649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/26/2024] [Accepted: 07/11/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND Postoperative pulmonary complications (PPCs) are common in patients who undergo colorectal surgery. Studies have focused on how to accurately diagnose and reduce the incidence of PPCs. Lung ultrasound has been proven to be useful in preoperative monitoring and postoperative care after cardiopulmonary surgery. However, lung ultrasound has not been studied in abdominal surgeries and has not been used with wearable devices to evaluate the influence of postoperative ambulation on the incidence of PPCs. AIM To investigate the relationship between lung ultrasound scores, PPCs, and postoperative physical activity levels in patients who underwent colorectal surgery. METHODS In this prospective observational study conducted from November 1, 2019 to August 1, 2020, patients who underwent colorectal surgery underwent daily bedside ultrasonography from the day before surgery to postoperative day (POD) 5. Lung ultrasound scores and PPCs were recorded and analyzed to investigate their relationship. Pedometer bracelets measured the daily movement distance for 5 days post-surgery, and the correlation between postoperative activity levels and lung ultrasound scores was examined. RESULTS Thirteen cases of PPCs was observed in the cohort of 101 patients. The mean (standard deviation) peak lung ultrasound score was 5.32 (2.52). Patients with a lung ultrasound score of ≥ 6 constituted the high-risk group. High-risk lung ultrasound scores were associated with an increased incidence of PPCs after colorectal surgery (logistic regression coefficient, 1.715; odds ratio, 5.556). Postoperative movement distance was negatively associated with the lung ultrasound scores [Spearman's rank correlation coefficient (r), -0.356, P < 0.05]. CONCLUSION Lung ultrasound effectively evaluates pulmonary condition post-colorectal surgery. Early ambulation and respiratory exercises in the initial two PODs will reduce PPCs and optimize postoperative care in patients undergoing colorectal surgery.
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Affiliation(s)
- Chen Lin
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Pei-Pei Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Zi-Yan Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Guo-Ru Lan
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Kai-Wen Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Chun-Hua Yu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Bin Wu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Jiménez-Serrano S, Páez-Carpio A, Doménech-Ximenos B, Cornellas L, Sánchez M, Revzin MV, Vollmer I. Conventional and Contrast-enhanced US of the Lung: From Performance to Diagnosis. Radiographics 2024; 44:e230171. [PMID: 38935548 DOI: 10.1148/rg.230171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
In recent years, lung US has evolved from a marginal tool to an integral component of diagnostic chest imaging. Contrast-enhanced US (CEUS) can improve routine gray-scale imaging of the lung and chest, particularly in diagnosis of peripheral lung diseases (PLDs). Although an underused tool in many centers, and despite inherent limitations in evaluation of central lung disease caused by high acoustic impedance between air and soft tissues, lung CEUS has emerged as a valuable tool in diagnosis of PLDs. Owing to the dual arterial supply to the lungs via pulmonary and bronchial (systemic) arteries, different enhancement patterns can be observed at lung CEUS, thereby enabling accurate differential diagnoses in various PLDs. Lung CEUS also assists in identifying patients who may benefit from complementary diagnostic tests, including image-guided percutaneous biopsy. Moreover, lung CEUS-guided percutaneous biopsy has shown feasibility in accessible subpleural lesions, enabling higher histopathologic performance without significantly increasing either imaging time or expenses compared with conventional US. The authors discuss the technique of and basic normal and pathologic findings at conventional lung US, followed by a more detailed discussion of lung CEUS applications, emphasizing specific aspects of pulmonary physiology, basic concepts in lung US enhancement, and the most commonly encountered enhancement patterns of different PLDs. Finally, they discuss the benefits of lung CEUS in planning and guidance of US-guided lung biopsy. ©RSNA, 2024 Supplemental material is available for this article.
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Affiliation(s)
- Sergio Jiménez-Serrano
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
| | - Alfredo Páez-Carpio
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
| | - Blanca Doménech-Ximenos
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
| | - Lluria Cornellas
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
| | - Marcelo Sánchez
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
| | - Margarita V Revzin
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
| | - Ivan Vollmer
- From the Department of Radiology, Imaging Diagnostic Center, Hospital Clinic Barcelona, Villarroel 170, 08036 Barcelona, Spain (S.J.S., A.P.C., B.D.X., L.C., M.S.); Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Conn (M.V.R.); and Department of Radiology, Hospital de la Vall d'Hebron, Barcelona, Spain (I.V.)
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Pare JR, Gjesteby LA, Tonelli M, Leo MM, Muruganandan KM, Choudhary G, Brattain LJ. Transfer Learning-Based B-Line Assessment of Lung Ultrasound for Acute Heart Failure. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:825-832. [PMID: 38423896 DOI: 10.1016/j.ultrasmedbio.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVE B-lines assessed by lung ultrasound (LUS) outperform physical exam, chest radiograph, and biomarkers for the associated diagnosis of acute heart failure (AHF) in the emergent setting. The use of LUS is however limited to trained professionals and suffers from interpretation variability. The objective was to utilize transfer learning to create an AI-enabled software that can aid novice users to automate LUS B-line interpretation. METHODS Data from an observational AHF LUS study provided standardized cine clips for AI model development and evaluation. A total of 49,952 LUS frames from 30 patients were hand scored and trained on a convolutional neural network (CNN) to interpret B-lines at the frame level. A random independent evaluation set of 476 LUS clips from 60 unique patients assessed model performance. The AI models scored the clips on both a binary and ordinal 0-4 multiclass assessment. RESULTS A multiclassification AI algorithm had the best performance at the binary level when applied to the independent evaluation set, AUC of 0.967 (95% CI 0.965-0.970) for detecting pathologic conditions. When compared to expert blinded reviewer, the 0-4 multiclassification AI algorithm scale had a reported linear weighted kappa of 0.839 (95% CI 0.804-0.871). CONCLUSIONS The multiclassification AI algorithm is a robust and well performing model at both binary and ordinal multiclass B-line evaluation. This algorithm has the potential to be integrated into clinical workflows to assist users with quantitative and objective B-line assessment for evaluation of AHF.
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Affiliation(s)
- Joseph R Pare
- Alpert Medical School of Brown University, Providence, RI, USA; Lifespan, Providence, RI, USA; Providence VA Medical Center, Providence, RI, USA; Boston University, Boston, MA, USA.
| | - Lars A Gjesteby
- Human Health & Performance Systems Group, MIT Lincoln Laboratory, Lexington, MA, USA
| | | | | | | | - Gaurav Choudhary
- Alpert Medical School of Brown University, Providence, RI, USA; Lifespan, Providence, RI, USA; Providence VA Medical Center, Providence, RI, USA
| | - Laura J Brattain
- Human Health & Performance Systems Group, MIT Lincoln Laboratory, Lexington, MA, USA
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Han L, Ke H, Xiao Y, Xu S, Huang Z, Wang H, Lyu G, Li S. The application value of lung ultrasound scoring in assessing disease severity: Evaluation of small-scale outbreaks of COVID-19. JOURNAL OF CLINICAL ULTRASOUND : JCU 2024; 52:284-294. [PMID: 38126219 DOI: 10.1002/jcu.23628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 11/29/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE This study explored the use of transthoracic lung ultrasound for evaluating COVID-19 patients, compared it with computed tomography (CT), and examined its effectiveness using 8 and 12 lung regions. METHODS A total of 100 patients with COVID-19 and 40 healthy volunteers were assessed using 12 regions (bilateral upper/lower regions of the anterior/lateral/posterior chest) and simplified 8 zones (bilateral upper/lower regions of the anterior/lateral chest) transthoracic lung ultrasound. The relationships between ultrasound, CT, and clinical indicators were analyzed to evaluate the diagnostic value of ultrasound scores in COVID-19. RESULTS Increased disease severity correlated with increased 8- and 12-zone ultrasound and CT scores (all p < 0.05). The modified 8-zone method strongly correlated with the 12-zone method (Pearson's r = 0.908, p < 0.05). The 8- and 12-zone methods correlated with CT scoring (correlation = 0.568 and 0.635, respectively; p < 0.05). The intragroup correlation coefficients of the 8-zone, 12-zone, and CT scoring methods were highly consistent (intragroup correlation coefficient = 0.718, p < 0.01). The 8-zone ultrasound score correlated negatively with oxygen saturation (rs = 0.306, p < 0.05) and Ca (rs = 0.224, p < 0.05) and positively with IL-6 (rs = 0.0.335, p < 0.05), erythrocyte sedimentation rate (rs = 0.327, p < 0.05), alanine aminotransferase (rs = 0.230, p < 0.05), and aspartate aminotransferase (rs = 0.251, p < 0.05). The 12-zone scoring method correlated negatively with oxygen saturation (rs = 0.338, p < 0.05) and Ca (rs = 0.245, p < 0.05) and positively with IL-6 (rs = 0.354, p < 0.05) and erythrocyte sedimentation rate (rs = 0.495, p < 0.05). CONCLUSION Lung ultrasound scores represent the clinical severity and have high clinical value for diagnosing COVID-19 pneumonia. The 8-zone scoring method can improve examination efficiency and reduce secondary injuries caused by patient movement.
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Affiliation(s)
- Lina Han
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Helin Ke
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Yang Xiao
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Shaodan Xu
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Zhibin Huang
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Han Wang
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Guorong Lyu
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
- Department of Medicine, Quanzhou Medical College, Quanzhou, China
| | - Shilin Li
- Department of Ultrasonography, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
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Liu J. Lung Ultrasonography Does Not Distinguish between Interstitial and Alveolar Pulmonary Edema. Diagnostics (Basel) 2024; 14:324. [PMID: 38337840 PMCID: PMC10855817 DOI: 10.3390/diagnostics14030324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/23/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
For a long time, lung diseases have been considered the "forbidden zone" for ultrasound diagnosis because the lung is filled with gas, and the ultrasound waves are totally reflected when they encounter gas [...].
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Affiliation(s)
- Jing Liu
- Department of Neonatology and NICU, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
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Safai Zadeh E, Görg C, Prosch H, Kifjak D, Dietrich CF, Laursen CB, Findeisen H. Lung Ultrasound and Pleural Artifacts: A Pictorial Review. Diagnostics (Basel) 2024; 14:179. [PMID: 38248056 PMCID: PMC10814232 DOI: 10.3390/diagnostics14020179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/07/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
Lung ultrasound is a well-established diagnostic approach used in detecting pathological changes near the pleura of the lung. At the acoustic boundary of the lung surface, it is necessary to differentiate between the primary visualization of pleural parenchymal pathologies and the appearance of secondary artifacts when sound waves enter the lung or are reflected at the visceral pleura. The aims of this pictorial essay are to demonstrate the sonographic patterns of various pleural interface artifacts and to illustrate the limitations and pitfalls of the use of ultrasound findings in diagnosing any underlying pathology.
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Affiliation(s)
- Ehsan Safai Zadeh
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna General Hospital, 1090 Vienna, Austria
| | - Christian Görg
- Interdisciplinary Center of Ultrasound Diagnostics, Clinic for Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipp University of Marburg, Baldingerstraße, 35037 Marburg, Germany
| | - Helmut Prosch
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna General Hospital, 1090 Vienna, Austria
| | - Daria Kifjak
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna General Hospital, 1090 Vienna, Austria
- Department of Radiology, Mass Memorial Medical Center and University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Christoph Frank Dietrich
- Department of General Internal Medicine (DAIM), Hirslanden Clinics Bern, Beau Site, Salem and Permanence, 3018 Bern, Switzerland;
| | - Christian B. Laursen
- Department of Respiratory Medicine, Odense University Hospital, 5000 Odense, Denmark
- Odense Respiratory Research Unit, Department of Clinical Research, University of Southern Denmark, 5230 Odense, Denmark
| | - Hajo Findeisen
- Department for Internal Medicine, Red Cross Hospital Bremen, 28199 Bremen, Germany
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Weimer JM, Beer D, Schneider C, Yousefzada M, Gottwald M, Züllich TF, Weimer A, Jonck C, Buggenhagen H, Kloeckner R, Merkel D. Inter-System Variability of Eight Different Handheld Ultrasound (HHUS) Devices-A Prospective Comparison of B-Scan Quality and Clinical Significance in Intensive Care. Diagnostics (Basel) 2023; 14:54. [PMID: 38201363 PMCID: PMC10795594 DOI: 10.3390/diagnostics14010054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 12/22/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND the use of handheld ultrasonography (HHUS) devices is well established in prehospital emergency diagnostics, as well as in intensive care settings. This is based on several studies in which HHUS devices were compared to conventional high-end ultrasonography (HEUS) devices. Nonetheless, there is limited evidence regarding potential variations in B-scan quality among HHUS devices from various manufacturers, and regarding whether any such differences hold clinical significance in intensive care medicine settings. METHODS this study included the evaluation of eight HHUS devices sourced from diverse manufacturers. Ultrasound videos of five previously defined sonographic questions (volume status/inferior vena cava, pleural effusion, pulmonary B-lines, gallbladder, and needle tracking in situ) were recorded with all devices. The analogue recording of the same pathologies with a HEUS device served as gold standard. The corresponding findings (HHUS and HEUS) were then played side by side and evaluated by sixteen intensive care physicians experienced in sonography. The B-scan quality and the clinical significance of the HHUS were assessed using a five-point Likert scale (5 points = very good; 1 point = insufficient). RESULTS both in assessing the quality of B-scans and in their ability to answer clinical questions, the HHUS achieved convincing results-regardless of the manufacturer. For example, only 8.6% (B-scan quality) and 9.8% (clinical question) of all submitted assessments received an "insufficient" rating. One HHUS device showed a significantly higher (p < 0.01) average points score in the assessment of B-scan quality (3.9 ± 0.65 points) and in the evaluation of clinical significance (4.03 ± 0.73 points), compared to the other devices. CONCLUSIONS HHUS systems are able to reliably answer various clinical intensive care questions and are-while bearing their limitations in mind-an acceptable alternative to conventional HEUS devices. Irrespective of this, the present study was able to demonstrate relevant differences in the B-scan quality of HHUS devices from different manufacturers.
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Affiliation(s)
- Johannes Matthias Weimer
- Rudolf Frey Learning Clinic, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (C.J.); (H.B.)
| | - Diana Beer
- Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School, 15562 Rüdersdorf bei Berlin, Germany; (D.B.); (C.S.); (M.Y.); (M.G.); (T.F.Z.)
| | - Christoph Schneider
- Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School, 15562 Rüdersdorf bei Berlin, Germany; (D.B.); (C.S.); (M.Y.); (M.G.); (T.F.Z.)
| | - Masuod Yousefzada
- Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School, 15562 Rüdersdorf bei Berlin, Germany; (D.B.); (C.S.); (M.Y.); (M.G.); (T.F.Z.)
| | - Michael Gottwald
- Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School, 15562 Rüdersdorf bei Berlin, Germany; (D.B.); (C.S.); (M.Y.); (M.G.); (T.F.Z.)
| | - Tim Felix Züllich
- Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School, 15562 Rüdersdorf bei Berlin, Germany; (D.B.); (C.S.); (M.Y.); (M.G.); (T.F.Z.)
| | - Andreas Weimer
- Center of Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, 69118 Heidelberg, Germany;
| | - Christopher Jonck
- Rudolf Frey Learning Clinic, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (C.J.); (H.B.)
| | - Holger Buggenhagen
- Rudolf Frey Learning Clinic, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; (C.J.); (H.B.)
| | - Roman Kloeckner
- Institute of Interventional Radiology, University Hospital Schleswig-Holstein—Campus Lübeck, 23538 Lübeck, Germany;
| | - Daniel Merkel
- Immanuel Klinik Rüdersdorf, University Hospital of the Brandenburg Medical School, 15562 Rüdersdorf bei Berlin, Germany; (D.B.); (C.S.); (M.Y.); (M.G.); (T.F.Z.)
- BIKUS—Brandenburg Institute for Clinical Ultrasound, Brandenburg Medical School Theodor Fontane (MHB), 16816 Neuruppin, Germany
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10
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Dietrich CF, Görg C, Horn R, Prosch H, Safai Zadeh E, Jenssen C. Ultrasound of the lung. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2023; 44:582-599. [PMID: 37054729 DOI: 10.1055/a-2010-7282] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The CME review is intended to explain and discuss the clinical value of lung ultrasound but also to enable a pragmatically oriented approach by analyzing the clinical aspect. This includes knowledge of the pre-test probability, the acuteness of the disease, the current clinical situation, detection and/or characterization, initial diagnosis or follow up assessment and the peculiarities of exclusion diagnosis. Diseases of the pleura and lungs are described using these criteria with their direct and indirect sonographic signs and the specific clinical significance of ultrasound findings. The importance and criteria of conventional B-mode, color Doppler ultrasound with or without spectral analysis of the Doppler signal and contrast-enhanced ultrasound are discussed as well.
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Affiliation(s)
- Christoph F Dietrich
- Department Allgemeine Innere Medizin, Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland
| | - Christian Görg
- Interdisciplinary Center of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipps University Marburg, Germany
| | - Rudolf Horn
- Center da sandà Val Müstair, CH-7537 Sta. Maria
| | - Helmut Prosch
- Abteilung für Allgemeine Radiologie und Kinderradiologie, Medizinische Universität Wien, Austria
| | - Ehsan Safai Zadeh
- Interdisciplinary Center of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipps University Marburg, Germany
| | - Christian Jenssen
- Klinik für Innere Medizin, Krankenhaus Märkisch-Oderland, Strausberg/Wriezen, Germany
- Brandenburgisches Institut für Klinischen Ultraschall an der Medizinischen Hochschule Brandenburg, Neuruppin, Germany
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11
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Weinrebe W, Kreppenhofer S, Dietrich CF. [Geriatric ultrasound : Prospective evaluation of ultrasound as extended screening in acute geriatric patients]. Z Gerontol Geriatr 2023; 56:647-652. [PMID: 36478131 DOI: 10.1007/s00391-022-02144-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND The aim of this study was to evaluate ultrasound as a routinely used procedure and extended physical examination in geriatric patients in acute care. METHODS Prospective study of 86 patients using ultrasound as a screening examination (abdomen, basal sections of the thorax, thyroid glands) under comparative use of a hand-held ultrasound device (HHUSD) and a high-end ultrasound (HEUS = gold standard). RESULTS In 20/86 (23.2%) clinically relevant findings with therapeutic consequences were found (pleural effusion, urinary retention, choledocholithiasis metatases, colon tumor). In 22/86 (25.6%) patients, additional questions existed besides the screening indication: tumor search (9.3%), anemia (5.8%), liver value elevation (5.8%), dyspnea (5.8%), splenic pathologies (2.3%), weight loss (1.2%), infectious focus (1.2%), diarrhea (1.2%), intra-abdominal hematoma (1.1%), abdominal aortic aneurysm (1.2%). The most common sonographic findings included: cholecystolithiasis (32.6%); right pleural effusion (31.4%), thyroid nodules (30.2%), renal cysts (27.9%), and fatty liver (26.7%). There were significant differences in sizing between HHUSD and HEUS (kidneys, pancreatic corpus and pancreatic caudal diameters, portal vein, left hepatic vein) without diagnostic relevance. CONCLUSION The extended screening by ultrasound provided important answers to classical questions in geriatrics (e.g. urinary retention, volume deficiency/pleural effusion) in many cases. The new findings had therapeutic consequences in one fifth of the patients. The HHUSD can be used in screening.
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Affiliation(s)
- W Weinrebe
- Departement für Allgemeine Innere Medizin, Spital Campus Bern, Hirslanden, Schänzlistr. 39, 3013, Bern, Schweiz.
| | - S Kreppenhofer
- Medizinische Klinik II, Caritas-Krankenhaus Bad Mergentheim, Bad Mergentheim, Deutschland
| | - C F Dietrich
- Departement für Allgemeine Innere Medizin, Spital Campus Bern, Hirslanden, Schänzlistr. 39, 3013, Bern, Schweiz
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12
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Baloescu C, Chen A, Varasteh A, Toporek G, McNamara RL, Raju B, Moore C. Two- Versus 8-Zone Lung Ultrasound in Heart Failure: Analysis of a Large Data Set Using a Deep Learning Algorithm. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:2349-2356. [PMID: 37255051 DOI: 10.1002/jum.16262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/05/2023] [Indexed: 06/01/2023]
Abstract
OBJECTIVE Scanning protocols for lung ultrasound often include 8 or more lung zones, which may limit real-world clinical use. We sought to compare a 2-zone, anterior-superior thoracic ultrasound protocol for B-line artifact detection with an 8-zone approach in patients with known or suspected heart failure using a deep learning (DL) algorithm. METHODS Adult patients with suspected heart failure and B-lines on initial lung ultrasound were enrolled in a prospective observational study. Subjects received daily ultrasounds with a hand-held ultrasound system using an 8-zone protocol (right and left anterior/lateral and superior/inferior). A previously published deep learning algorithm that rates severity of B-lines on a 0-4 scale was adapted for use on hand-held ultrasound full video loops. Average severities for 8 and 2 zones were calculated utilizing DL ratings. Bland-Altman plot analyses were used to assess agreement and identify bias between 2- and 8-zone scores for both primary (all patients, 5728 videos, 205 subjects) and subgroup (confirmed diagnosis of heart failure or pulmonary edema, 4464 videos, 147 subjects) analyses. RESULTS Bland-Altman plot analyses revealed excellent agreement for both primary and subgroup analyses. The absolute difference on the 4-point scale between 8- and 2-zone average scores was not significant for the primary dataset (0.03; 95% CI -0.01 to 0.07) or the subgroup (0.01; 95% CI -0.04 to 0.06). CONCLUSION Utilization of a 2-zone, anterior-superior thoracic ultrasound protocol provided similar severity information to an 8-zone approach for a dataset of subjects with known or suspected heart failure.
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Affiliation(s)
- Cristiana Baloescu
- Department of Emergency Medicine, Yale University School of Medicine, New Haven, Connecticut, 06519, USA
| | - Alvin Chen
- Philips Research North America, Cambridge, Massachusetts, 02141, USA
| | - Alexander Varasteh
- Department of Emergency Medicine, Yale University School of Medicine, New Haven, Connecticut, 06519, USA
- Department of Emergency Medicine, Washington University School of Medicine, St. Louis, Missouri, 63110, USA
| | - Grzegorz Toporek
- Philips Research North America, Cambridge, Massachusetts, 02141, USA
- Inari Medical, Cambridge, Massachusetts, 02139, USA
| | - Robert L McNamara
- Division of Cardiology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, 06520, USA
| | - Balasundar Raju
- Philips Research North America, Cambridge, Massachusetts, 02141, USA
| | - Chris Moore
- Department of Emergency Medicine, Yale University School of Medicine, New Haven, Connecticut, 06519, USA
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13
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Arvig MD, Lassen AT, Gæde PH, Gärtner SW, Falster C, Skov IR, Petersen HØ, Posth S, Laursen CB. Impact of serial cardiopulmonary point-of-care ultrasound exams in patients with acute dyspnoea: a randomised, controlled trial. Emerg Med J 2023; 40:700-707. [PMID: 37595984 PMCID: PMC10579498 DOI: 10.1136/emermed-2022-212694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 07/23/2023] [Indexed: 08/20/2023]
Abstract
BACKGROUND Serial point-of-care ultrasound (PoCUS) can potentially improve acute patient care through treatment adjusted to the dynamic ultrasound findings. The objective was to investigate if treatment guided by monitoring patients with acute dyspnoea with serial cardiopulmonary PoCUS and usual care could reduce the severity of dyspnoea compared with usual care alone. METHODS This was a randomised, controlled, blinded-outcome trial conducted in three EDs in Denmark between 9 October 2019 and 26 May 2021. Patients aged ≥18 years admitted with a primary complaint of dyspnoea were allocated 1:1 with block randomisation to usual care, which included a single cardiopulmonary PoCUS within 1 hour of arrival (control group) or usual care (including a PoCUS within 1 hour of arrival) plus two additional PoCUS performed at 2 hours interval from the initial PoCUS (serial ultrasound group). The primary outcome was a reduction of dyspnoea measured on a verbal dyspnoea scale (VDS) from 0 to 10 recorded at inclusion and after 2, 4 and 5 hours. RESULTS There were 206 patients recruited, 102 in the serial ultrasound group and 104 in the control group, all of whom had complete follow-up. The mean difference in VDS between patients in the serial ultrasound and the control group was -1.09 (95% CI -1.51 to -0.66) and -1.66 (95% CI -2.09 to -1.23) after 4 and 5 hours, respectively. The effect was more pronounced in patients with a presumptive diagnosis of acute heart failure (AHF). A larger proportion of patients received diuretics in the serial ultrasound group. CONCLUSION Therapy guided by serial cardiopulmonary PoCUS may, together with usual care, facilitate greater improvement in the severity of dyspnoea, especially in patients with AHF compared with usual care with a single PoCUS in the ED. Serial PoCUS should therefore be considered for routine use to aid the physician in stabilising the patient faster. TRIAL REGISTRATION NUMBER NCT04091334.
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Affiliation(s)
- Michael Dan Arvig
- Department of Emergency Medicine, Slagelse Hospital, Slagelse, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Annmarie Touborg Lassen
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
- OPEN, Odense Patient data Explorative Network, Odense University Hospital, Odense, Denmark
| | - Peter Haulund Gæde
- Department of Cardiology and Endocrinology, Slagelse Hospital, Slagelse, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Stefan Wernblad Gärtner
- Department of Emergency Medicine, Slagelse Hospital, Slagelse, Denmark
- Department of Anaesthesiology, Herlev Hospital, Herlev, Denmark
| | - Casper Falster
- Department of Respiratory Medicine, Odense University Hospital, Odense, Denmark
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Inge Raadal Skov
- Department of Respiratory Medicine, Odense University Hospital, Odense, Denmark
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Henrik Ømark Petersen
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
- Department of Emergency Medicine, Regional Hospital Horsens, Horsens, Denmark
| | - Stefan Posth
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Emergency Medicine, Odense University Hospital, Odense, Denmark
| | - Christian B Laursen
- Department of Respiratory Medicine, Odense University Hospital, Odense, Denmark
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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14
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Velazquez Guevara BA, Abud Mendoza C, Avilés Ramírez LRDJ, Santillán Guerrero E. Ultrasound for diagnosis of interstitial lung disease in diffuse connective tissue diseases. REUMATOLOGIA CLINICA 2023; 19:455-462. [PMID: 37164882 DOI: 10.1016/j.reumae.2022.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 12/05/2022] [Indexed: 05/12/2023]
Abstract
Patients with diffuse connective tissue diseases frequently develop interstitial lung disease, which carries a worse prognosis and shortens survival. High-resolution computed tomography is the first-choice test, and is competitive with histopathology, however, the cost and radiation may limit its use, particularly for screening. Lung ultrasound is a rapid, accessible, reproducible, and inexpensive study that is useful for diagnosis of interstitial lung disease. Furthermore, extensive training is not required to identify the alterations associated with these lung diseases. B lines and pleural irregularities compose the ultrasonographic interstitial syndrome, although, it must be kept in mind that it is not specific, and it is necessary to rule out haemodynamic, cardiovascular, and infectious abnormalities. This review highlights the elevated prevalence of this lung condition in the main rheumatological diseases, with emphasis on the usefulness of pulmonary ultrasound.
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Affiliation(s)
| | - Carlos Abud Mendoza
- Hospital Central Dr. Ignacio Morones Prieto, Universidad Autónoma de San Luís Potosí, San Luis Potosí, Mexico.
| | | | - Eva Santillán Guerrero
- Hospital Central Dr. Ignacio Morones Prieto, Universidad Autónoma de San Luís Potosí, San Luis Potosí, Mexico
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15
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Ostras O, Shponka I, Pinton G. Ultrasound imaging of lung disease and its relationship to histopathology: An experimentally validated simulation approach. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2023; 154:2410-2425. [PMID: 37850835 PMCID: PMC10586875 DOI: 10.1121/10.0021870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/19/2023]
Abstract
Lung ultrasound (LUS) is a widely used technique in clinical lung assessment, yet the relationship between LUS images and the underlying disease remains poorly understood due in part to the complexity of the wave propagation physics in complex tissue/air structures. Establishing a clear link between visual patterns in ultrasound images and underlying lung anatomy could improve the diagnostic accuracy and clinical deployment of LUS. Reverberation that occurs at the lung interface is complex, resulting in images that require interpretation of the artifacts deep in the lungs. These images are not accurate spatial representations of the anatomy due to the almost total reflectivity and high impedance mismatch between aerated lung and chest wall. Here, we develop an approach based on the first principles of wave propagation physics in highly realistic maps of the human chest wall and lung to unveil a relationship between lung disease, tissue structure, and its resulting effects on ultrasound images. It is shown that Fullwave numerical simulations of ultrasound propagation and histology-derived acoustical maps model the multiple scattering physics at the lung interface and reproduce LUS B-mode images that are comparable to clinical images. However, unlike clinical imaging, the underlying tissue structure model is known and controllable. The amount of fluid and connective tissue components in the lung were gradually modified to model disease progression, and the resulting changes in B-mode images and non-imaging reverberation measures were analyzed to explain the relationship between pathological modifications of lung tissue and observed LUS.
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Affiliation(s)
- Oleksii Ostras
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27514, USA
| | - Ihor Shponka
- Department of Pathology and Forensic Medicine, Dnipro State Medical University, Dnipro, Ukraine
| | - Gianmarco Pinton
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27514, USA
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16
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Ishida H, Naganuma H. Letter to the Editor on "Vertical Artifacts as Lung Ultrasound Signs". JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:2451-2452. [PMID: 37255056 DOI: 10.1002/jum.16281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 05/15/2023] [Indexed: 06/01/2023]
Affiliation(s)
- Hideaki Ishida
- Department of Gastroenterology, Akita Red Cross Hospital, Akita, Japan
| | - Hiroko Naganuma
- Department of Gastroenterology, Yokote Municipal Hospital, Akita, Japan
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17
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Schäfer VS, Recker F, Kretschmer E, Putensen C, Ehrentraut SF, Staerk C, Fleckenstein T, Mayr A, Seibel A, Schewe JC, Petzinna SM. Lung Ultrasound in Predicting Outcomes in Patients with COVID-19 Treated with Extracorporeal Membrane Oxygenation. Viruses 2023; 15:1796. [PMID: 37766203 PMCID: PMC10535976 DOI: 10.3390/v15091796] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Pulmonary involvement due to SARS-CoV-2 infection can lead to acute respiratory distress syndrome in patients with COVID-19. Consequently, pulmonary imaging is crucial for management of COVID-19. This study aimed to evaluate the prognostic value of lung ultrasound (LUS) with a handheld ultrasound device (HHUD) in patients with COVID-19 treated with extracorporeal membrane oxygenation (ECMO). Therefore, patients underwent LUS with a HHUD every two days until they were either discharged from the intensive care unit or died. The study was conducted at the University Hospital of Bonn's anesthesiological intensive care ward from December 2020 to August 2021. A total of 33 patients (median [IQR]: 56.0 [53-60.5] years) were included. A high LUS score was associated with a decreased P/F ratio (repeated measures correlation [rmcorr]: -0.26; 95% CI: -0.34, -0.15; p < 0.001), increased extravascular lung water, defined as fluid accumulation in the pulmonary interstitium and alveoli (rmcorr: 0.11; 95% CI: 0.01, 0.20; p = 0.030), deteriorated electrolyte status (base excess: rmcorr: 0.14; 95% CI: 0.05, 0.24; p = 0.004; pH: rmcorr: 0.12; 95% CI: 0.03, 0.21; p = 0.001), and decreased pulmonary compliance (rmcorr: -0.10; 95% CI: -0.20, -0.01; p = 0.034). The maximum LUS score was lower in survivors (median difference [md]: -0.35; 95% CI: -0.55, -0.06; p = 0.006). A cutoff value for non-survival was calculated at a LUS score of 2.63. At the time of maximum LUS score, P/F ratio (md: 1.97; 95% CI: 1.12, 2.76; p < 0.001) and pulmonary compliance (md: 18.67; 95% CI: 3.33, 37.15; p = 0.018) were higher in surviving patients. In conclusion, LUS with a HHUD enables continuous evaluation of cardiopulmonary function in COVID-19 patients receiving ECMO support therapy and provides prognostic value in determining the patients' likelihood of survival.
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Affiliation(s)
- Valentin Sebastian Schäfer
- Department of Internal Medicine III, Oncology, Hematology, Rheumatology and Clinical Immunology, University Hospital of Bonn, 53113 Bonn, Germany; (V.S.S.); (E.K.)
| | - Florian Recker
- Department of Obstetrics and Gynecology, University Hospital of Bonn, 53113 Bonn, Germany;
| | - Edgar Kretschmer
- Department of Internal Medicine III, Oncology, Hematology, Rheumatology and Clinical Immunology, University Hospital of Bonn, 53113 Bonn, Germany; (V.S.S.); (E.K.)
| | - Christian Putensen
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Bonn, 53113 Bonn, Germany; (C.P.); (S.F.E.); (J.-C.S.)
| | - Stefan Felix Ehrentraut
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Bonn, 53113 Bonn, Germany; (C.P.); (S.F.E.); (J.-C.S.)
| | - Christian Staerk
- Institute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, 53113 Bonn, Germany; (C.S.); (T.F.); (A.M.)
| | - Tobias Fleckenstein
- Institute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, 53113 Bonn, Germany; (C.S.); (T.F.); (A.M.)
| | - Andreas Mayr
- Institute for Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, 53113 Bonn, Germany; (C.S.); (T.F.); (A.M.)
| | - Armin Seibel
- Department of Intensive Care Medicine, DRK Hospital Kirchen, 57548 Kirchen, Germany;
| | - Jens-Christian Schewe
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Bonn, 53113 Bonn, Germany; (C.P.); (S.F.E.); (J.-C.S.)
- Department of Anaesthesiology Intensive Care Medicine and Pain Therapy, University Medical Centre Rostock, 18057 Rostock, Germany
| | - Simon Michael Petzinna
- Department of Internal Medicine III, Oncology, Hematology, Rheumatology and Clinical Immunology, University Hospital of Bonn, 53113 Bonn, Germany; (V.S.S.); (E.K.)
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18
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Leote J, Muxagata T, Guerreiro D, Francisco C, Dias H, Loução R, Bacariza J, Gonzalez F. Influence of Ultrasound Settings on Laboratory Vertical Artifacts. ULTRASOUND IN MEDICINE & BIOLOGY 2023; 49:1901-1908. [PMID: 37150622 DOI: 10.1016/j.ultrasmedbio.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 05/09/2023]
Abstract
OBJECTIVE The aim of the work described here was to analyze the relationship between the change in ultrasound (US) settings and the vertical artifacts' number, visual rating and signal intensity METHODS: An in vitro phantom consisting of a damp sponge and gelatin mix was created to simulate vertical artifacts. Furthermore, several US parameters were changed sequentially (i.e., frequency, dynamic range, line density, gain, power and image enhancement) and after image acquisition. Five US experts rated the artifacts for number and quality. In addition, a vertical artifact visual score was created to determine the higher artifact rating ("optimal") and the lower artifact rating ("suboptimal"). Comparisons were made between the tested US parameters and baseline recordings. RESULTS The expert intraclass correlation coefficient for the number of vertical artifacts was 0.694. The parameters had little effect on the "optimal" vertical artifacts but changed their number. Dynamic range increased the number of discernible vertical artifacts to 3 from 36 to 102 dB. CONCLUSION The intensity did not correlate with the visual rating score. Most of the available US parameters did not influence vertical artifacts.
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Affiliation(s)
- Joao Leote
- Critical Care Department, Hospital Garcia de Orta EPE, Almada, Portugal; Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal.
| | - Tiago Muxagata
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
| | - Diana Guerreiro
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
| | - Cláudia Francisco
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
| | - Hermínia Dias
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisboa, Portugal
| | - Ricardo Loução
- Center of Neurosurgery, University Hospital of Cologne, Cologne, Germany
| | - Jacobo Bacariza
- Critical Care Department, Hospital Garcia de Orta EPE, Almada, Portugal
| | - Filipe Gonzalez
- Critical Care Department, Hospital Garcia de Orta EPE, Almada, Portugal
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19
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Elhassan MG, Grewal S, Nezarat N. Point-of-Care Ultrasonography in Internal Medicine: Limitations and Pitfalls for Novice Users. Cureus 2023; 15:e43655. [PMID: 37600433 PMCID: PMC10436027 DOI: 10.7759/cureus.43655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 08/22/2023] Open
Abstract
Point-of-care ultrasound (POCUS) is increasingly being adopted in the field of internal medicine, leading to the development of POCUS curricula in undergraduate and postgraduate medical education programs. Prominent internal medicine societies and organizations worldwide recognize the expanding utilization of POCUS by internal medicine physicians, emphasizing the need for practitioners to be aware of both its benefits and limitations. Despite the growing enthusiasm for POCUS, clinicians, particularly those with limited clinical experience, must be cautious regarding its inherent limitations and the potential impact on their clinical practice. This review aims to outline the limitations and potential drawbacks of POCUS for medical students, residents, and internists who wish to stay abreast of the escalating use of POCUS in internal medicine and have a desire, or have already commenced, to incorporate POCUS into their practice. Additionally, it provides recommendations for enhancing POCUS proficiency to mitigate these limitations.
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Affiliation(s)
| | - Sarbjot Grewal
- Internal Medicine, Saint Agnes Medical Center, Fresno, USA
| | - Negin Nezarat
- Internal Medicine, Saint Agnes Medical Center, Fresno , USA
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20
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Liu F, Zhang W, Zhao Z, Xu X, Jian M, Han R. Effect of driving pressure on early postoperative lung gas distribution in supratentorial craniotomy: a randomized controlled trial. BMC Anesthesiol 2023; 23:176. [PMID: 37217882 DOI: 10.1186/s12871-023-02144-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 05/17/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Neurosurgical patients represent a high-risk population for postoperative pulmonary complications (PPCs). A lower intraoperative driving pressure (DP) is related to a reduction in postoperative pulmonary complications. We hypothesized that driving pressure-guided ventilation during supratentorial craniotomy might lead to a more homogeneous gas distribution in the lung postoperatively. METHODS This was a randomized trial conducted between June 2020 and July 2021 at Beijing Tiantan Hospital. Fifty-three patients undergoing supratentorial craniotomy were randomly divided into the titration group or control group at a ratio of 1 to 1. The control group received 5 cmH2O PEEP, and the titration group received individualized PEEP targeting the lowest DP. The primary outcome was the global inhomogeneity index (GI) immediately after extubation obtained by electrical impedance tomography (EIT). The secondary outcomes were lung ultrasonography scores (LUSs), respiratory system compliance, the ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (PaO2/FiO2) and PPCs within 3 days postoperatively. RESULTS Fifty-one patients were included in the analysis. The median (IQR [range]) DP in the titration group versus the control group was 10 (9-12 [7-13]) cmH2O vs. 11 (10-12 [7-13]) cmH2O, respectively (P = 0.040). The GI tract did not differ between groups immediately after extubation (P = 0.080). The LUSS was significantly lower in the titration group than in the control group immediately after tracheal extubation (1 [0-3] vs. 3 [1-6], P = 0.045). The compliance in the titration group was higher than that in the control group at 1 h after intubation (48 [42-54] vs. 41 [37-46] ml·cmH2O-1, P = 0.011) and at the end of surgery (46 [42-51] vs. 41 [37-44] ml·cmH2O-1, P = 0.029). The PaO2/FiO2 ratio was not significantly different between groups in terms of the ventilation protocol (P = 0.117). At the 3-day follow-up, no postoperative pulmonary complications occurred in either group. CONCLUSIONS Driving pressure-guided ventilation during supratentorial craniotomy did not contribute to postoperative homogeneous aeration, but it may lead to improved respiratory compliance and lower lung ultrasonography scores. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov NCT04421976.
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Affiliation(s)
- Feifei Liu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
- Department of Anesthesiology, Beijing Fangshan Liangxiang Hospital, Beijing, China
| | - Wei Zhang
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Zhanqi Zhao
- Institute of Technical Medicine, Furtwangen University, Villingen-Schwenningen, Germany
| | - Xin Xu
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Minyu Jian
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China
| | - Ruquan Han
- Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119, Southwest 4th Ring Road, Fengtai District, Beijing, 100070, China.
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21
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He Y, Xu X, Wang C, Wu Z. Prognostic value of the early lung ultrasound B-line score for postoperative pulmonary insufficiency in patients undergoing thoracic surgery: an observational study. Eur J Med Res 2023; 28:160. [PMID: 37138303 PMCID: PMC10155320 DOI: 10.1186/s40001-023-01117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/10/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Postoperative pulmonary insufficiency (PPI) is an important contributor to morbidity and mortality after thoracic surgery. Lung ultrasound is a reliable tool for assessing respiratory function. We sought to determine the clinical value of the early lung ultrasound B-line score for predicting changes in pulmonary function after thoracic surgery. METHODS Eighty-nine patients undergoing elective lung surgery were included in this study. The B-line score was determined 30 min after removal of the endotracheal tube, and the PaO2/FiO2 ratio was recorded 30 min after extubation and on the third postoperative day. Patients were divided into normal (PaO2/FiO2 ≥ 300) and PPI (PaO2/FiO2 < 300) groups according to their PaO2/FiO2 ratios. A multivariate logistic regression model was used to identify independent predictors of postoperative pulmonary insufficiency. Receiver operating characteristic (ROC) analysis was performed for significantly correlated variables. RESULTS Eighty-nine patients undergoing elective lung surgery were included in this study. We evaluated 69 patients in the normal group and 20 in the PPI group. Patients conforming to NYHA class 3 at administration were significantly more represented in the PPI group (5.8 and 55%; p < 0.001). B-line scores were significantly higher in the PPI group than in the normal group (16; IQR 13-21 vs. 7; IQR 5-10; p < 0.001). The B-line score was an independent risk factor (OR = 1.349 95% CI 1.154-1.578; p < 0.001), and its best cutoff value for predicting PPI was 12 (sensitivity: 77.5%; specificity: 66.7%). CONCLUSIONS Lung ultrasound B-line scores 30 min after extubation are effective in predicting early PPI in patients undergoing thoracic surgery. Trial registration This study was registered with the Chinese Clinical Trials Registry (ChiCTR2000040374).
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Affiliation(s)
- Yipeng He
- Department of Anesthesiology, Nanjing Medical University Affiliated, Changzhou No. 2 People's Hospital, Changzhou, 213003, China
| | - Xiaoxiao Xu
- Graduate School of Dalian Medical University, Liaoning, 116044, China
| | - Chenhao Wang
- Graduate School of Dalian Medical University, Liaoning, 116044, China
| | - Zhouquan Wu
- Department of Anesthesiology, Nanjing Medical University Affiliated, Changzhou No. 2 People's Hospital, Changzhou, 213003, China.
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22
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Nabati M, Parsaee H. Combined use of double Doppler Tei index and lung ultrasound for predicting pulmonary hypertension and corpulmonale in neonates with respiratory distress. JOURNAL OF CLINICAL ULTRASOUND : JCU 2023; 51:636-638. [PMID: 37125737 DOI: 10.1002/jcu.23378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 05/03/2023]
Affiliation(s)
- Maryam Nabati
- Department of Cardiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Cardiovascular Research Center, Sari, Iran
| | - Homa Parsaee
- Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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23
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Siwik D, Apanasiewicz W, Żukowska M, Jaczewski G, Dąbrowska M. Diagnosing Lung Abnormalities Related to Heart Failure in Chest Radiogram, Lung Ultrasound and Thoracic Computed Tomography. Adv Respir Med 2023; 91:103-122. [PMID: 36960960 PMCID: PMC10037625 DOI: 10.3390/arm91020010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/12/2023] [Accepted: 02/17/2023] [Indexed: 03/25/2023]
Abstract
Heart failure (HF) is a multidisciplinary disease affecting almost 1-2% of the adult population worldwide. Symptoms most frequently reported by patients suffering from HF include dyspnoea, cough or exercise intolerance, which is equally often observed in many pulmonary diseases. The spectrum of lung changes related to HF is wide. The knowledge of different types of these abnormalities is essential to distinguish patients with HF from patients with lung diseases or both disorders and thus avoid unnecessary diagnostics or therapies. In this review, we aimed to summarise recent research concerning the spectrum of lung abnormalities related to HF in three frequently used lung imaging techniques: chest X-ray (CXR), lung ultrasound (LUS) and chest computed tomography (CT). We discussed the most prevalent abnormalities in the above-mentioned investigations in the context of consecutive pathophysiological stages identified in HF: (i) redistribution, (ii) interstitial oedema, and (iii) alveolar oedema. Finally, we compared the utility of these imaging tools in the clinical setting. In conclusion, we consider LUS the most useful and promising imaging technique due to its high sensitivity, repeatability and accessibility. However, the value of CXR and chest CT is their potential for establishing a differential diagnosis.
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Affiliation(s)
- Dominika Siwik
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Wojciech Apanasiewicz
- Students' Research Group 'Alveolus', Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Małgorzata Żukowska
- 2nd Department of Clinical Radiology, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Grzegorz Jaczewski
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Marta Dąbrowska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
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24
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Schwarz S. Pulmonary Sonography - Neonatal Diagnosis Part 1. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2023; 44:14-35. [PMID: 36075237 DOI: 10.1055/a-1885-5664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Diseases of the respiratory system are among the main problems of premature patients in the neonatal intensive care unit. Radiography of the thorax is the gold standard of imaging. This results in high cumulative radiation exposure with potential negative long-term consequences. Ultrasound examination of thoracic structures represents a promising radiation-free and ubiquitously available alternative.A healthy, ventilated lung can only be imaged via artifacts, since total reflection of the sound waves occurs due to the high impedance difference between tissue and air-filled lung. Pathologies of pleura and subpleural lung tissue lead to changes in the acoustic properties of the tissue and thus to variations in the artifacts that can be imaged. The main sonographic characteristics of pulmonary pathology are: pleural line abnormalities, increased B-lines and comet-tail artifacts, lung consolidations, a visible pulmonary pulse, pleural sliding abnormalities, and visualization of effusions. Deviations from normal sonographic findings can be assigned to specific underlying pathophysiologies, so that conclusions about the disease can be drawn in conjunction with the clinical symptoms.
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Affiliation(s)
- Simone Schwarz
- Clinic for Pediatrics and Adolescent Medicine, Sana Kliniken Duisburg GmbH, Duisburg, Germany
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25
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Dugar S, Fox S, Koratala A, Moghekar A, Mehta AC. Lung Ultrasonographic Signs in Pulmonary Disease - A Video Review. J Intensive Care Med 2023; 38:220-231. [PMID: 35950723 DOI: 10.1177/08850666221120221] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lung ultrasound (US) is a well-established imaging tool in the inpatient and critical care setting. It has proven its worth in the rapid bedside diagnosis of a variety of conditions pertaining to the lungs and the thorax. Lung US was initially introduced as a bedside imaging tool to evaluate the size and characteristics of pleural effusion. Over the years, the field of lung ultrasonography has rapidly expanded introducing nuances in image interpretation. Numerous primary and secondary signs have been described in the literature to identify both normal and abnormal findings. The primary signs can help narrow the list of differential diagnoses, whereas the addition of secondary signs help create an imaging pattern facilitating the confirmation of diagnosis or recognition of the underlying disease process. These wide variety of signs and patterns can present a challenge to the learning of lung ultrasonography, particularly to a novice user. We sought to compile a comprehensive list of these findings to serve as a useful resource to aid effortless adoption of lung ultrasonography in clinical practice. In this review, we narrate the evolution of lung US, describe common protocols applied in performance of the lung US, and illustrate a comprehensive list of common lung US signs and patterns along with their differential diagnosis and clinical utility.
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Affiliation(s)
- Siddharth Dugar
- Department of Critical Care Medicine, Respiratory Institute, 2569Cleveland Clinic, Cleveland, OH, USA
| | - Steven Fox
- Department of Critical Care Medicine, Respiratory Institute, 2569Cleveland Clinic, Cleveland, OH, USA
| | - Abhilash Koratala
- Division of Nephrology, 5506Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ajit Moghekar
- Department of Critical Care Medicine, Respiratory Institute, 2569Cleveland Clinic, Cleveland, OH, USA
| | - Atul C Mehta
- Department of Pulmonary Medicine, Respiratory Institute, 2569Cleveland Clinic, Cleveland, OH, USA
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26
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Smargiassi A, Zanforlin A, Perrone T, Buonsenso D, Torri E, Limoli G, Mossolani EE, Tursi F, Soldati G, Inchingolo R. Vertical Artifacts as Lung Ultrasound Signs: Trick or Trap? Part 2- An Accademia di Ecografia Toracica Position Paper on B-Lines and Sonographic Interstitial Syndrome. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:279-292. [PMID: 36301623 DOI: 10.1002/jum.16116] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 09/07/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Although during the last few years the lung ultrasound (LUS) technique has progressed substantially, several artifacts, which are currently observed in clinical practice, still need a solid explanation of the physical phenomena involved in their origin. This is particularly true for vertical artifacts, conventionally known as B-lines, and for their use in clinical practice. A wider consensus and a deeper understanding of the nature of these artifactual phenomena will lead to a better classification and a shared nomenclature, and, ultimately, result in a more objective correlation between anatomo-pathological data and clinical scenarios. The objective of this review is to collect and document the different signs and artifacts described in the history of chest ultrasound, with a particular focus on vertical artifacts (B-lines) and sonographic interstitial syndrome (SIS). By reviewing the possible physical and anatomical interpretation of the signs and artifacts proposed in the literature, this work also aims to bring order to the available studies and to present the AdET (Accademia di Ecografia Toracica) viewpoint in terms of nomenclature and clinical approach to the SIS.
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Affiliation(s)
- Andrea Smargiassi
- UOC Pneumologia, Dipartimento Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Alessandro Zanforlin
- Servizio Pneumologico Aziendale, Azienda Sanitaria dell'Alto Adige, Bolzano, Italy
| | - Tiziano Perrone
- Emergency Medicine Department, Humanitas Gavazzeni, Bergamo, Italy
| | - Danilo Buonsenso
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Elena Torri
- Emergency Medicine Department, Humanitas Gavazzeni, Bergamo, Italy
| | | | | | - Francesco Tursi
- Pulmonary Medicine Unit, Codogno Hospital, Azienda Socio Sanitaria Territoriale Lodi, Codogno, Italy
| | - Gino Soldati
- Ippocrate Medical Center, Castelnuovo di Garfagnana, Lucca, Italy
| | - Riccardo Inchingolo
- UOC Pneumologia, Dipartimento Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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27
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Blazic I, Cogliati C, Flor N, Frija G, Kawooya M, Umbrello M, Ali S, Baranne ML, Cho YJ, Pitcher R, Vollmer I, van Deventer E, del Rosario Perez M. The use of lung ultrasound in COVID-19. ERJ Open Res 2023; 9:00196-2022. [PMID: 36628270 PMCID: PMC9548241 DOI: 10.1183/23120541.00196-2022] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 09/22/2022] [Indexed: 01/13/2023] Open
Abstract
This review article addresses the role of lung ultrasound in patients with coronavirus disease 2019 (COVID-19) for diagnosis and disease management. As a simple imaging procedure, lung ultrasound contributes to the early identification of patients with clinical conditions suggestive of COVID-19, supports decisions about hospital admission and informs therapeutic strategy. It can be performed in various clinical settings (primary care facilities, emergency departments, hospital wards, intensive care units), but also in outpatient settings using portable devices. The article describes typical lung ultrasound findings for COVID-19 pneumonia (interstitial pattern, pleural abnormalities and consolidations), as one component of COVID-19 diagnostic workup that otherwise includes clinical and laboratory evaluation. Advantages and limitations of lung ultrasound use in COVID-19 are described, along with equipment requirements and training needs. To infer on the use of lung ultrasound in different regions, a literature search was performed using key words "COVID-19", "lung ultrasound" and "imaging". Lung ultrasound is a noninvasive, rapid and reproducible procedure; can be performed at the point of care; requires simple sterilisation; and involves non-ionising radiation, allowing repeated exams on the same patient, with special benefit in children and pregnant women. However, physical proximity between the patient and the ultrasound operator is a limitation in the current pandemic context, emphasising the need to implement specific infection prevention and control measures. Availability of qualified staff adequately trained to perform lung ultrasound remains a major barrier to lung ultrasound utilisation. Training, advocacy and awareness rising can help build up capacities of local providers to facilitate lung ultrasound use for COVID-19 management, in particular in low- and middle-income countries.
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Affiliation(s)
- Ivana Blazic
- Radiology Department, Clinical Hospital Center Zemun, Belgrade, Serbia
| | - Chiara Cogliati
- Internal Medicine, L. Sacco Hospital, ASST Fatebenefratelli-Sacco, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Nicola Flor
- Unità Operativa di Radiologia, Luigi Sacco University Hospital, Milan, Italy
| | - Guy Frija
- Université de Paris, International Society of Radiology, Paris, France
| | - Michael Kawooya
- Ernest Cook Ultrasound Research and Education Institute (ECUREI), Kampala, Uganda
| | - Michele Umbrello
- SC Anestesia e Rianimazione II, Ospedale San Carlo Borromeo, ASST Santi Paolo e Carlo – Polo Universitario, Milan, Italy
| | - Sam Ali
- ECUREI, Mengo Hospital, Kampala, Uganda
| | - Marie-Laure Baranne
- Assistance Publique – Hôpitaux de Paris, Paris Institute for Clinical Ultrasound, Paris, France
| | - Young-Jae Cho
- South Korea/Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, South Korea
| | - Richard Pitcher
- Division of Radiodiagnosis, Department of Medical Imaging and Clinical Oncology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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28
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Koda R, Taniguchi H, Konno K, Yamakoshi Y. B-line Elastography Measurement of Lung Parenchymal Elasticity. ULTRASONIC IMAGING 2023; 45:30-41. [PMID: 36631936 DOI: 10.1177/01617346221149141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This paper proposes a method to determine the elasticity of the lung parenchyma from the B-line Doppler signal observed using continuous shear wave elastography, which uses a small vibrator placed on the tissue surface to propagate continuous shear waves with a vibration frequency of approximately 100 Hz. Since the B-line is generated by multiple reflections in fluid-storing alveoli near the lung surface, the ultrasonic multiple-reflection signal from the B-line is affected by the Doppler shift due to shear waves propagating in the lung parenchyma. When multiple B-lines are observed, the propagation velocity can be estimated by measuring the difference in propagation time between the B-lines. Therefore, continuous shear wave elastography can be used to determine the elasticity of the lung parenchyma by measuring the phase difference of shear wave between the B-lines. In this study, three elastic sponges (soft, medium, and hard) with embedded glass beads were used to simulate fluid-storing alveoli. Shear wave velocity measured using the proposed method was compared with that calculated using Young's modulus obtained from compression measurement. Using the proposed method, the measured shear wave velocities (mean ± S.D.) were 3.78 ± 0.23, 4.24 ± 0.12, and 5.06 ± 0.05 m/s for soft, medium, and hard sponges, respectively, which deviated by a maximum of 5.37% from the values calculated using the measured Young's moduli. The shear wave velocities of the sponge phantom were in a velocity range similar to the mean shear wave velocities of healthy and diseased lungs reported by magnetic resonance elastography (3.25 and 4.54 m/s, respectively). B-line elastography may enable emergency diagnoses of acute lung disease using portable ultrasonic echo devices.
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Affiliation(s)
- Ren Koda
- Graduate School of Science and Technology, Gunma University, Kiryu, Gunma, Japan
| | - Hayato Taniguchi
- Department of Emergency Medicine, Graduate School of Medicine, Yokohama City University, Yokohama, Kanagawa, Japan
| | - Kei Konno
- Clinical Laboratory Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Yoshiki Yamakoshi
- Graduate School of Science and Technology, Gunma University, Kiryu, Gunma, Japan
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29
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Parri N, Allinovi M, Giacalone M, Corsini I. To B or not to B. The rationale for quantifying B-lines in pediatric lung diseases. Pediatr Pulmonol 2023; 58:9-15. [PMID: 36253340 DOI: 10.1002/ppul.26185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 01/11/2023]
Abstract
Lung ultrasound (LUS) is emerging as adjunct tool to be used during clinical assessment. Among the different hallmarks of LUS, B-lines are well known artifacts, which are not correlated with identifiable structures, but which can be used for pathological classification. The presence of multiple B-lines is a sonographic sign of lung interstitial syndrome. It has been demonstrated in adults that there is a direct correlation between the number of B-lines and the severity of the interstitial involvement of lung disease. Counting B-lines is an attempt to enrich the clinical assessment and clinical information, beyond obtaining a simple dichotomous answer. Semiquantitative or quantitative B-line assessment has been shown to correlate with fluid overload and demonstrated prognostic implications in specific neonatal and pediatric conditions. LUS with quantitative B-lines assessment is promising. Current evidence allows for quantification of B-lines in a limited number of neonatal and pediatric diseases.
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Affiliation(s)
- Niccolò Parri
- Department of Emergency Medicine and Trauma Center, Meyer University Children's Hospital, Florence, Italy
| | - Marco Allinovi
- Nephrology, Dialysis and Transplantation Unit, Careggi University Hospital, Florence, Italy
| | - Martina Giacalone
- Department of Emergency Medicine and Trauma Center, Meyer University Children's Hospital, Florence, Italy
| | - Iuri Corsini
- Division of Neonatology, Careggi University Hospital of Florence, Florence, Italy
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30
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Unsupervised landmark detection and classification of lung infection using transporter neural networks. Comput Biol Med 2023; 152:106345. [PMID: 36493733 DOI: 10.1016/j.compbiomed.2022.106345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 10/27/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
Supervised deep learning techniques have been very popular in medical imaging for various tasks of classification, segmentation, and object detection. However, they require a large number of labelled data which is expensive and requires many hours of careful annotation by experts. In this paper, an unsupervised transporter neural network framework with an attention mechanism is proposed to automatically identify relevant landmarks with applications in lung ultrasound (LUS) imaging. The proposed framework identifies key points that provide a concise geometric representation highlighting regions with high structural variation in the LUS videos. In order for the landmarks to be clinically relevant, we have employed acoustic propagation physics driven feature maps and angle-controlled Radon Transformed frames at the input instead of directly employing the gray scale LUS frames. Once the landmarks are identified, the presence of these landmarks can be employed for classification of the given frame into various classes of severity of infection in lung. The proposed framework has been trained on 130 LUS videos and validated on 100 LUS videos acquired from multiple centres at Spain and India. Frames were independently assessed by experts to identify clinically relevant features such as A-lines, B-lines, and pleura in LUS videos. The key points detected showed high sensitivity of 99% in detecting the image landmarks identified by experts. Also, on employing for classification of the given lung image into normal and abnormal classes, the proposed approach, even with no prior training, achieved an average accuracy of 97% and an average F1-score of 95% respectively on the task of co-classification with 3-fold cross-validation.
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31
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Optimización de la exploración ecodoppler mediante la manipulación de los controles del equipo (“Knobología”- Parte 1). ANGIOLOGIA 2023. [DOI: 10.20960/angiologia.00426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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32
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Miller DL, Dou C, Dong Z. Lung Ultrasound Induction of Pulmonary Capillary Hemorrhage in Neonatal Swine. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:2276-2291. [PMID: 36030131 PMCID: PMC9942946 DOI: 10.1016/j.ultrasmedbio.2022.06.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 05/05/2023]
Abstract
This study investigated induction of pulmonary capillary hemorrhage (PCH) in neonatal pigs (piglets) using three different machines: a GE Venue R1 point-of-care system with C1-5 and L4-12t probes, a GE Vivid 7 Dimension with a 7L probe and a SuperSonic Imagine machine with an SL15-4 probe and shear wave elastography (SWE). Female piglets were anesthetized, and each was mounted vertically in a warm bath for scanning at two or three intercostal spaces. After aiming at an innocuous output, the power was raised for a test exposure. Hydrophone measurements were used to calculate in situ values of mechanical index (MIIS). Inflated lungs were removed and scored for PCH area. For the C1-5 probe at 50% and 100% acoustical output (AO), a PCH threshold of 0.53 MIIS was obtained by linear regression (r2 = 0.42). The L4-12t probe did not induce PCH, but the 7L probe induced zones of PCH in the scan planes. The Venue R1 automated B-line tool applied with the C1-5 probe did not detect PCH induced by the C1-5 probe as B-line counts. However, when PCH induced by C1-5 and 7L exposures were subsequently scanned with the L4-12t probe using the automated tool, B-lines were counted in association with the PCH. The SWE induced PCH at push-pulse positions for 3, 30 and 300 s of SWE with PCH accumulating at 0.33 mm2/s and an exponential rise to a maximum of 18.4 mm2 (r2 = 0.61). This study demonstrated the induction of PCH by LUS of piglets, and supports the safety recommendation for use of MIs <0.4 in neonatal LUS.
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Affiliation(s)
- Douglas L Miller
- Department of Radiology, University of Michigan Medical School, Ann Arbor, Michigan, USA.
| | - Chunyan Dou
- Department of Radiology, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Zhihong Dong
- Department of Radiology, University of Michigan Medical School, Ann Arbor, Michigan, USA
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33
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Sultan SR. Association Between Lung Ultrasound Patterns and Pneumonia. Ultrasound Q 2022; 38:246-249. [PMID: 35235542 DOI: 10.1097/ruq.0000000000000598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Pneumonia is a common respiratory infection that affects the lungs. Lung ultrasound (LUS) is a portable, cost-effective imaging method, which is free of ionizing radiation and has been shown to be useful for evaluating pneumonia. The aim of this retrospective analytical study was to determine the association between lung ultrasound patterns and pneumonia. For the purpose of performing the required analysis, LUS patterns including consolidations, pleural line irregularities, A lines and B lines from 90 subjects (44 patients with confirmed pneumonia and 46 controls) were retrieved from a published open-access data set, which was reviewed and approved by medical experts. A χ 2 test was used for the comparison of categorical variables to determine the association between each LUS pattern and the presence of pneumonia. There is a significant association between LUS consolidation and the presence of pneumonia ( P < 0.0001). Lung ultrasound A lines are significantly associated with the absence of pneumonia ( P < 0.0001), whereas there are no associations between B lines or pleural line irregularities with pneumonia. Lung ultrasound consolidation is found to be associated with the presence of pneumonia. A lines are associated with healthy lungs, and there is no association of B lines and pleural irregularities with the presence of pneumonia. Further studies investigating LUS patterns with clinical information and symptoms of patients with pneumonia are required.
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Affiliation(s)
- Salahaden R Sultan
- Department of Diagnostic Radiology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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34
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Boccatonda A, Grignaschi A, Lanotte AMG, Cocco G, Vidili G, Giostra F, Schiavone C. Role of Lung Ultrasound in the Management of Patients with Suspected SARS-CoV-2 Infection in the Emergency Department. J Clin Med 2022; 11:jcm11082067. [PMID: 35456160 PMCID: PMC9025104 DOI: 10.3390/jcm11082067] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 03/21/2022] [Accepted: 04/02/2022] [Indexed: 01/27/2023] Open
Abstract
Background: The lung ultrasound (LUS) score has been proposed as an optimal scheme for the ultrasound study of patients with suspected/confirmed COVID-19 pneumonia. The aims of our study were to evaluate the use of lung ultrasound as a diagnostic tool for diagnosing SARS-CoV-2 pneumonia, to examine the validity of the LUS score for the diagnosis of COVID-19 pneumonia, and to correlate this score with hospitalization rate and 30-day mortality. Materials and Methods: A retrospective analysis was performed on 1460 patients who were referred to the General Emergency Department of the S. Orsola-Malpighi Hospital from April 2020 to May 2020 for symptoms suspected to indicate SARS-CoV-2 infection. The ultrasound examination was based on a common execution scheme called the LUS score, as previously described. Results and Conclusions: The LUS score was found to correlate with the degree of clinical severity and respiratory failure (paO2/FiO2 ratio and the alveolar−arterial gradient increase than expected for age). It was shown that COVID-19 patients with an LUS score of >7 require the use of oxygen support, and a value of >10 is associated with an increased risk of oro-tracheal intubation. The LUS score was found to present higher values in hospitalized patients, increasing according to the degree of care intensity. Patients who died from COVID-19 were characterized by a mean LUS score of 11 at presentation to the emergency department. An LUS score of >7.5 was found to indicate a sensitivity of 83% and a specificity of 89% for 30-day mortality in COVID-19 patients. The use of LUS seems to be an optimal first level method for pneumonia detection and risk stratification in patients with suspected SARS-CoV-2 infection.
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Affiliation(s)
- Andrea Boccatonda
- Emergency Department, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (A.G.); (A.M.G.L.); (F.G.)
- Correspondence: ; Tel.: +39-051-214-3324; Fax: +39-051-214-3349
| | - Alice Grignaschi
- Emergency Department, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (A.G.); (A.M.G.L.); (F.G.)
| | - Antonella Maria Grazia Lanotte
- Emergency Department, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (A.G.); (A.M.G.L.); (F.G.)
| | - Giulio Cocco
- Internal Medicine, G. d’Annunzio University, 66100 Chieti, Italy; (G.C.); (C.S.)
| | - Gianpaolo Vidili
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Fabrizio Giostra
- Emergency Department, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (A.G.); (A.M.G.L.); (F.G.)
| | - Cosima Schiavone
- Internal Medicine, G. d’Annunzio University, 66100 Chieti, Italy; (G.C.); (C.S.)
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35
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What Is COVID 19 Teaching Us about Pulmonary Ultrasound? Diagnostics (Basel) 2022; 12:diagnostics12040838. [PMID: 35453889 PMCID: PMC9027485 DOI: 10.3390/diagnostics12040838] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/22/2022] [Accepted: 03/26/2022] [Indexed: 12/12/2022] Open
Abstract
In lung ultrasound (LUS), the interactions between the acoustic pulse and the lung surface (including the pleura and a small subpleural layer of tissue) are crucial. Variations of the peripheral lung density and the subpleural alveolar shape and its configuration are typically connected to the presence of ultrasound artifacts and consolidations. COVID-19 pneumonia can give rise to a variety of pathological pulmonary changes ranging from mild diffuse alveolar damage (DAD) to severe acute respiratory distress syndrome (ARDS), characterized by peripheral bilateral patchy lung involvement. These findings are well described in CT imaging and in anatomopathological cases. Ultrasound artifacts and consolidations are therefore expected signs in COVID-19 pneumonia because edema, DAD, lung hemorrhage, interstitial thickening, hyaline membranes, and infiltrative lung diseases when they arise in a subpleural position, generate ultrasound findings. This review analyzes the structure of the ultrasound images in the normal and pathological lung given our current knowledge, and the role of LUS in the diagnosis and monitoring of patients with COVID-19 lung involvement.
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36
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Corradi F, Vetrugno L, Isirdi A, Bignami E, Boccacci P, Forfori F. Ten conditions where lung ultrasonography may fail: limits, pitfalls and lessons learned from a computer-aided algorithmic approach. Minerva Anestesiol 2022; 88:308-313. [PMID: 35164490 DOI: 10.23736/s0375-9393.22.16195-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Lung ultrasonography provides relevant information on morphological and functional changes occurring in the lungs. However, it correlates weakly with pulmonary congestion and extra vascular lung water. Moreover, there is lack of consensus on scoring systems and acquisition protocols. The automation of this technique may provide promising easy-to-use clinical tools to reduce inter- and intra-observer variability and to standardize scores, allowing faster data collection without increased costs and patients risks.
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Affiliation(s)
- Francesco Corradi
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy - .,Anaesthesia and Intensive Care Unit, Galliera Hospital, Genoa, Italy -
| | - Luigi Vetrugno
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.,Department of Anesthesiology, Critical Care Medicine and Emergency, SS. Annunziata Hospital, Chieti, Italy
| | - Alessandro Isirdi
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Elena Bignami
- Section of Anesthesiology, Division of Critical Care and Pain Medicine, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Patrizia Boccacci
- Department of Informatics, Bioengineering, Robotics and System Engineering (DIBRIS), University of Genoa, Genoa, Italy
| | - Francesco Forfori
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
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37
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Ciuca IM, Pop LL, Dediu M, Stoicescu ER, Marc MS, Manea AM, Manolescu DL. Lung Ultrasound in Children with Cystic Fibrosis in Comparison with Chest Computed Tomography: A Feasibility Study. Diagnostics (Basel) 2022; 12:diagnostics12020376. [PMID: 35204467 PMCID: PMC8871437 DOI: 10.3390/diagnostics12020376] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/28/2022] [Accepted: 01/30/2022] [Indexed: 01/15/2023] Open
Abstract
Background: Cystic fibrosis (CF) lung disease determines the outcome of this condition. For lung evaluation processes, computed tomography (CT) is the gold standard, but also causes irradiation. Lately, lung ultrasound (LUS) has proven to be reliable for the diagnosis of consolidations, atelectasis, and/or bronchiectasis. The aim of our study was to evaluate the value of a newly conceived LUS score by comparing it to the modified Bhalla CT score. A further aim was to evaluate the correlation between the score and the lung clearance index (LCI). Methods: Patients with CF were screened by LUS, followed by a CT scan. Spearman’s test was used for correlations. Results: A total of 98 patients with CF were screened, and 57 were included in the study; their mean age was 11.8 ± 5.5 (mean ± SD) years. The mean LUS score was 5.88 ± 5.4 SD. The LUS CF score had a very strong correlation with the CT score of rs = 0.87 (p = 0.000). LUS showed a good sensibility for detecting atelectasis (Se = 83.7%) and consolidations (Se = 94.4%). A lower Se (77.7%) and Sp (9%) were found for cylindrical bronchiectasis. Conclusion: Our study shows that LUS and the lung CF score are parameters that can be used with a complementary role in the diagnosis and monitoring of CF lung disease in children.
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Affiliation(s)
- Ioana Mihaiela Ciuca
- Pediatric Department, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (I.M.C.); (L.L.P.); (M.D.)
| | - Liviu Laurentiu Pop
- Pediatric Department, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (I.M.C.); (L.L.P.); (M.D.)
| | - Mihaela Dediu
- Pediatric Department, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (I.M.C.); (L.L.P.); (M.D.)
| | - Emil Robert Stoicescu
- Radiology Department, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (E.R.S.); (D.L.M.)
- Research Center for Pharmaco-Toxicological Evaluations, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Monica Steluta Marc
- Pulmonology Department, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
- Correspondence: ; Tel.: +40-721434044
| | - Aniko Maria Manea
- Neonatology and Puericulture Department, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania;
| | - Diana Luminita Manolescu
- Radiology Department, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (E.R.S.); (D.L.M.)
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38
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Safai Zadeh E, Görg C, Dietrich CF, Görlach J, Alhyari A, Trenker C. Contrast-Enhanced Ultrasound for Evaluation of Pleural Effusion: A Pictorial Essay. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:485-503. [PMID: 33782994 DOI: 10.1002/jum.15705] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/19/2021] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
B-mode ultrasound (B-US) is the standard imaging modality to evaluate pleural effusion. The value of B-US for assessing the malignancy of a pleural effusion (PE) is limited. For this purpose, computed tomography (CT) and thoracoscopy are the methods of choice to evaluate an effusion. The aim of this Pictorial Essay is to demonstrate contrast-enhanced ultrasound (CEUS) as a method in addition to B-US and CT for the evaluation of PE taking into account the clinical background. The characteristic patterns of pleural pathologies, effusion morphology, and associated lung parenchymal consolidations are presented.
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Affiliation(s)
- Ehsan Safai Zadeh
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
| | - Christian Görg
- Interdisciplinary Centre of Ultrasound Diagnostics, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
- Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
| | - Christoph F Dietrich
- Department Allgemeine Innere Medizin (DAIM), Kliniken Hirslanden Bern, Beau Site, Salem und Permanence, Bern, Switzerland
| | - Jannis Görlach
- Department of Diagnostic and Interventional Radiology, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
| | - Amjad Alhyari
- Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
| | - Corinna Trenker
- Haematology, Oncology and Immunology, University Hospital Giessen and Marburg, Philipps University Marburg, Marburg, Germany
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39
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Arntfield R, Wu D, Tschirhart J, VanBerlo B, Ford A, Ho J, McCauley J, Wu B, Deglint J, Chaudhary R, Dave C, VanBerlo B, Basmaji J, Millington S. Automation of Lung Ultrasound Interpretation via Deep Learning for the Classification of Normal versus Abnormal Lung Parenchyma: A Multicenter Study. Diagnostics (Basel) 2021; 11:2049. [PMID: 34829396 PMCID: PMC8621216 DOI: 10.3390/diagnostics11112049] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 10/30/2021] [Accepted: 10/31/2021] [Indexed: 12/12/2022] Open
Abstract
Lung ultrasound (LUS) is an accurate thoracic imaging technique distinguished by its handheld size, low-cost, and lack of radiation. User dependence and poor access to training have limited the impact and dissemination of LUS outside of acute care hospital environments. Automated interpretation of LUS using deep learning can overcome these barriers by increasing accuracy while allowing point-of-care use by non-experts. In this multicenter study, we seek to automate the clinically vital distinction between A line (normal parenchyma) and B line (abnormal parenchyma) on LUS by training a customized neural network using 272,891 labelled LUS images. After external validation on 23,393 frames, pragmatic clinical application at the clip level was performed on 1162 videos. The trained classifier demonstrated an area under the receiver operating curve (AUC) of 0.96 (±0.02) through 10-fold cross-validation on local frames and an AUC of 0.93 on the external validation dataset. Clip-level inference yielded sensitivities and specificities of 90% and 92% (local) and 83% and 82% (external), respectively, for detecting the B line pattern. This study demonstrates accurate deep-learning-enabled LUS interpretation between normal and abnormal lung parenchyma on ultrasound frames while rendering diagnostically important sensitivity and specificity at the video clip level.
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Affiliation(s)
- Robert Arntfield
- Division of Critical Care Medicine, Western University, London, ON N6A 5C1, Canada; (C.D.); (J.B.)
| | - Derek Wu
- Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada; (D.W.); (J.T.); (J.H.); (R.C.)
| | - Jared Tschirhart
- Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada; (D.W.); (J.T.); (J.H.); (R.C.)
| | - Blake VanBerlo
- Faculty of Mathematics, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
| | - Alex Ford
- Independent Researcher, London, ON N6A 1L8, Canada;
| | - Jordan Ho
- Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada; (D.W.); (J.T.); (J.H.); (R.C.)
| | - Joseph McCauley
- Faculty of Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
| | - Benjamin Wu
- Independent Researcher, London, ON N6C 4P9, Canada;
| | - Jason Deglint
- Faculty of Systems Design Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada;
| | - Rushil Chaudhary
- Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada; (D.W.); (J.T.); (J.H.); (R.C.)
| | - Chintan Dave
- Division of Critical Care Medicine, Western University, London, ON N6A 5C1, Canada; (C.D.); (J.B.)
| | - Bennett VanBerlo
- Faculty of Engineering, University of Western Ontario, London, ON N6A 5C1, Canada;
| | - John Basmaji
- Division of Critical Care Medicine, Western University, London, ON N6A 5C1, Canada; (C.D.); (J.B.)
| | - Scott Millington
- Department of Critical Care Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada;
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40
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Ostras O, Soulioti DE, Pinton G. Diagnostic ultrasound imaging of the lung: A simulation approach based on propagation and reverberation in the human body. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 150:3904. [PMID: 34852581 DOI: 10.1121/10.0007273] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Although ultrasound cannot penetrate a tissue/air interface, it images the lung with high diagnostic accuracy. Lung ultrasound imaging relies on the interpretation of "artifacts," which arise from the complex reverberation physics occurring at the lung surface but appear deep inside the lung. This physics is more complex and less understood than conventional B-mode imaging in which the signal directly reflected by the target is used to generate an image. Here, to establish a more direct relationship between the underlying acoustics and lung imaging, simulations are used. The simulations model ultrasound propagation and reverberation in the human abdomen and at the tissue/air interfaces of the lung in a way that allows for direct measurements of acoustic pressure inside the human body and various anatomical structures, something that is not feasible clinically or experimentally. It is shown that the B-mode images beamformed from these acoustical simulations reproduce primary clinical features that are used in diagnostic lung imaging, i.e., A-lines and B-lines, with a clear relationship to known underlying anatomical structures. Both the oblique and parasagittal views are successfully modeled with the latter producing the characteristic "bat sign," arising from the ribs and intercostal part of the pleura. These simulations also establish a quantitative link between the percentage of fluid in exudative regions and the appearance of B-lines, suggesting that the B-mode may be used as a quantitative imaging modality.
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Affiliation(s)
- Oleksii Ostras
- Joint Department of Biomedical Engineering of the University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27514, USA
| | - Danai Eleni Soulioti
- Joint Department of Biomedical Engineering of the University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27514, USA
| | - Gianmarco Pinton
- Joint Department of Biomedical Engineering of the University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27514, USA
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41
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Tsaban G, Galante O, Almog Y, Ullman Y, Fuchs L. Feasibility of machine integrated point of care lung ultrasound automatic B-lines tool in the Corona-virus 2019 critical care unit. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2021; 25:345. [PMID: 34560883 PMCID: PMC8464101 DOI: 10.1186/s13054-021-03770-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 09/13/2021] [Indexed: 12/03/2022]
Affiliation(s)
- Gal Tsaban
- Medical Intensive Care Unit, Soroka University Medical Center, P.O.B 151, Beersheva, Israel.,Department of Cardiology, Soroka University Medical Center, Beersheva, Israel.,Faculty of Health Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Ori Galante
- Medical Intensive Care Unit, Soroka University Medical Center, P.O.B 151, Beersheva, Israel.,Faculty of Health Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Yaniv Almog
- Medical Intensive Care Unit, Soroka University Medical Center, P.O.B 151, Beersheva, Israel.,Faculty of Health Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Yuval Ullman
- Medical Intensive Care Unit, Soroka University Medical Center, P.O.B 151, Beersheva, Israel.,Faculty of Health Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Lior Fuchs
- Medical Intensive Care Unit, Soroka University Medical Center, P.O.B 151, Beersheva, Israel. .,Faculty of Health Sciences, Ben Gurion University of the Negev, Beersheva, Israel.
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42
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Demi M. On the Replica of US Pulmonary Artifacts by Means of Physical Models. Diagnostics (Basel) 2021; 11:diagnostics11091666. [PMID: 34574007 PMCID: PMC8471862 DOI: 10.3390/diagnostics11091666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/20/2022] Open
Abstract
Currently, the diagnostic value of the artefactual information provided by lung ultrasound images is widely recognized by physicians. In particular, the existence of a correlation between the visual characteristics of the vertical artifacts, which arise from the pleura line, and the genesis (pneumogenic or cardiogenic) of a pulmonary disorder is commonly accepted. Physicians distinguish vertical artifacts from vertical artifacts which extend to the bottom of the screen (B-lines) and common vertical artifacts from well-structured artifacts (modulated B-lines). However, the link between these visual characteristics and the causes which determine them is still unclear. Moreover, the distinction between short and long artifacts and the distinction between common and structured artifacts are not on/off, and their classification can be critical. In order to derive further information from the visual inspection of the vertical artifacts, the mechanisms which control the artifact formation must be identified. In this paper, the link between the visual characteristics of the vertical artifacts (the observed effect) and the distribution of the aerated spaces at the pleural level (the cause) is addressed. Plausible mechanisms are suggested and illustrated through experimental results.
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Affiliation(s)
- Marcello Demi
- Department of Bioengineering, Fondazione Toscana Gabriele Monasterio, 56124 Pisa, Italy
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43
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Gokkus H, Cosgun Z, Cosgun M, Ekici MA, Kalaycioglu O. Sonographic Evaluation of Pulmonary Interstitial Edema in Patient With Preeclampsia. Ultrasound Q 2021; 37:267-271. [PMID: 34478426 DOI: 10.1097/ruq.0000000000000554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT The aim of this study was to sonographically detect pulmonary edema, which is a major problem in pregnant women with preeclampsia, in the interstitial phase. We evaluated 41 preeclampsia patients and 21 control subjects prospectively. In the preeclampsia group, 26 patients had severe features, whereas the other 15 patients had none. To detect early fluid loading in lungs, sonographic B lines were counted from the intercostal space by using ultrasonography, and left ventricular loading findings were examined for corporation by using transthoracic echocardiography both before and after birth. In severe preeclampsia, the number of B lines before and after birth is statistically significant compared with the other groups. In addition, the total number of B lines calculated at 24 hours after delivery was significantly lower than that calculated before delivery (P < 0.018). In terms of prenatal E values, a statistically significant difference was found between all groups (P < 0.001). A strong positive and statistically significant relationship was found between B lines and prenatal E/e' (r = 0.768; P < 0.001). The overall accuracy rate of the prenatal E/e' and E value for estimation of the B line number classification is 0.791 (95% confidence interval, 0.674-0.908; P < 0.001) and 0.829 (95% confidence interval, 0.722-0.936; P < 0.001), respectively. Pulmonary edema is a serious complication in patients with severe preeclampsia and may be detected interstitially in some patients, even if it does not occur clinically.
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Affiliation(s)
- Halil Gokkus
- Department of Radiology, Izzet Baysal State Hospital
| | | | | | | | - Oya Kalaycioglu
- Biostatistics and Medical Informatics, Izzet Baysal Faculty of Medicine, Izzet Baysal University, Bolu, Turkey
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44
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Yuriditsky E, Horowitz JM, Panebianco NL, Sauthoff H, Saric M. Lung Ultrasound Imaging: A Primer for Echocardiographers. J Am Soc Echocardiogr 2021; 34:1231-1241. [PMID: 34425194 DOI: 10.1016/j.echo.2021.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 08/11/2021] [Accepted: 08/15/2021] [Indexed: 01/03/2023]
Abstract
Lung ultrasound (LUS) has gained considerable acceptance in emergency and critical care medicine but is yet to be fully implemented in cardiology. Standard imaging protocols for LUS in acute care settings have allowed the rapid and accurate diagnosis of dyspnea, respiratory failure, and shock. LUS is greatly additive to echocardiography and is superior to auscultation and chest radiography, particularly when the diagnosis of acute decompensated heart failure is in question. In this review, the authors describe LUS techniques, interpretation, and clinical applications, with the goal of informing cardiologists on the imaging modality. Additionally, the authors review LUS findings associated with various disease states most relevant to cardiac care. Although there is extensive literature on LUS in the acute care setting, there is a dearth of reviews directly focused for practicing cardiologists. Current evidence demonstrates that this modality is an important adjunct to echocardiography, providing valuable clinical information at the bedside.
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Affiliation(s)
- Eugene Yuriditsky
- Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York.
| | - James M Horowitz
- Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York
| | - Nova L Panebianco
- Department of Emergency Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Harald Sauthoff
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, New York University School of Medicine, New York, New York
| | - Muhamed Saric
- Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York
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45
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Patrician A, Pernett F, Lodin-Sundström A, Schagatay E. Association Between Arterial Oxygen Saturation and Lung Ultrasound B-Lines After Competitive Deep Breath-Hold Diving. Front Physiol 2021; 12:711798. [PMID: 34421654 PMCID: PMC8371971 DOI: 10.3389/fphys.2021.711798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/12/2021] [Indexed: 12/22/2022] Open
Abstract
Breath-hold diving (freediving) is an underwater sport that is associated with elevated hydrostatic pressure, which has a compressive effect on the lungs that can lead to the development of pulmonary edema. Pulmonary edema reduces oxygen uptake and thereby the recovery from the hypoxia developed during freediving, and increases the risk of hypoxic syncope. We aimed to examine the efficacy of SpO2, via pulse-oximetry, as a tool to detect pulmonary edema by comparing it to lung ultrasound B-line measurements after deep diving. SpO2 and B-lines were collected in 40 freedivers participating in an international deep freediving competition. SpO2 was measured within 17 ± 6 min and lung B-lines using ultrasound within 44 ± 15 min after surfacing. A specific symptoms questionnaire was used during SpO2 measurements. We found a negative correlation between B-line score and minimum SpO2 (rs = −0.491; p = 0.002) and mean SpO2 (rs = −0.335; p = 0.046). B-line scores were positively correlated with depth (rs = 0.408; p = 0.013), confirming that extra-vascular lung water is increased with deeper dives. Compared to dives that were asymptomatic, symptomatic dives had a 27% greater B-line score, and both a lower mean and minimum SpO2 (all p < 0.05). Indeed, a minimum SpO2 ≤ 95% after a deep dive has a positive predictive value of 29% and a negative predictive value of 100% regarding symptoms. We concluded that elevated B-line scores are associated with reduced SpO2 after dives, suggesting that SpO2 via pulse oximetry could be a useful screening tool to detect increased extra-vascular lung water. The practical application is not to diagnose pulmonary edema based on SpO2 – as pulse oximetry is inexact – rather, to utilize it as a tool to determine which divers require further evaluation before returning to deep freediving.
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Affiliation(s)
- Alexander Patrician
- Centre for Heart, Lung & Vascular Health, University of British Columbia, Okanagan, BC, Canada
| | - Frank Pernett
- Environmental Physiology Group, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
| | | | - Erika Schagatay
- Environmental Physiology Group, Department of Health Sciences, Mid Sweden University, Östersund, Sweden.,Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
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46
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Bertolone DT, De Colle C, Rozza F, Fucile I, Santoro C, Conte M, De Luca N, Mancusi C. Lung ultrasound: a narrative review and proposed protocol for patients admitted to Cardiac Rehabilitation Unit. Monaldi Arch Chest Dis 2021; 92. [PMID: 34461698 DOI: 10.4081/monaldi.2021.1753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 06/26/2021] [Indexed: 11/23/2022] Open
Abstract
Lung ultrasonography (LUS) has become in the last 10 years a technique that has reduced the need of second level diagnostic methods such as chest X-ray (CXR) and computerize tomography (CT) for the diagnostic imaging of lung and pleural space, throughout its diagnostic accuracy, radiation free, low cost, real time and bedside approach. The common use of LUS has been recently extend to cardiac and pulmonary disease even in context of Cardiac Rehabilitation Unit and it could be an additional tool for physiotherapist for the management of patients during Rehabilitation course. The authors performed a literature review in PubMed and suggested a new standardize protocol for LUS, based on guidelines and expert consensus document, for patients admitted to Cardiac Rehabilitation Unit. In this protocol, LUS should be performed in six scan each hemithorax, covering twelve imagine regions. For each scan will be noted a specific physiologic or pathological patterns. Furthermore, we suggest for each patient, the use of the Lung Ultrasound Score (LUS score) to obtain a global view of lung aeration and to monitor any changes during the hospitalization. An increase in score range indicates a more severe condition. This Lung Ultrasonography Protocol should be performed in all patients at the time of admission to Cardiac Rehabilitation Unit to monitoring the aeration of the lungs and the possible lung and/or pleura complications after a cardiac disease avoiding the use of second level surveys.
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Affiliation(s)
- Dario Tino Bertolone
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
| | - Cristina De Colle
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
| | - Francesco Rozza
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
| | - Ilaria Fucile
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
| | - Ciro Santoro
- Hypertension Research Center & Department of Advanced Biomedical Science, Federico II University Hospital, Naples, Italy.
| | - Maurizio Conte
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
| | - Nicola De Luca
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
| | - Costantino Mancusi
- Hypertension Research Center, Department of Advanced Biomedical Science, Federico II University Hospital, Naples.
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Miller DL, Dou C, Raghavendran K, Dong Z. The Influence of Xylazine and Clonidine on Lung Ultrasound-Induced Pulmonary Capillary Hemorrhage in Spontaneously Hypertensive Rats. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:2331-2338. [PMID: 33972153 PMCID: PMC8243848 DOI: 10.1016/j.ultrasmedbio.2021.03.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/18/2021] [Accepted: 03/29/2021] [Indexed: 05/21/2023]
Abstract
Induction of pulmonary capillary hemorrhage (PCH) by lung ultrasound (LUS) depends not only on physical exposure parameters but also on physiologic conditions and drug treatment. We studied the influence of xylazine and clonidine on LUS-induced PCH in spontaneously hypertensive and normotensive rats using diagnostic B-mode ultrasound at 7.3 MHz. Using ketamine anesthesia, rats receiving saline, xylazine, or clonidine treatment were tested with different pulse peak rarefactional pressure amplitudes in 5 min exposures. Results with xylazine or clonidine in spontaneously hypertensive rats were not significantly different at the three exposure pulse peak rarefactional pressure amplitudes, and thresholds were lower (2.2 MPa) than with saline (2.6 MPa). Variations in LUS PCH were not correlated with mean systemic blood pressure. Similar to previous findings for dexmedetomidine, the clinical drug clonidine tended to increase susceptibility to LUS PCH.
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Affiliation(s)
- Douglas L Miller
- Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA.
| | - Chunyan Dou
- Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Krishnan Raghavendran
- Department of Surgery, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Zhihong Dong
- Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA
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48
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DeSanti RL, Al-Subu AM, Cowan EA, Kamps NN, Lasarev MR, Schmidt J, Kory PD. Point-of-Care Lung Ultrasound to Diagnose the Etiology of Acute Respiratory Failure at Admission to the PICU. Pediatr Crit Care Med 2021; 22:722-732. [PMID: 33739956 DOI: 10.1097/pcc.0000000000002716] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVES Determine the sensitivity and specificity of point-of-care lung ultrasound in identifying the etiology of acute respiratory failure at admission to the PICU. DESIGN Prospective observational study. SETTING Tertiary PICU. PATIENTS Children older than 37 weeks gestational age and less than or equal to 18 years old admitted to the PICU with acute respiratory failure from December 2018 to February 2020. INTERVENTION Point-of-care lung ultrasound performed within 14 hours of admission to the PICU by physicians blinded to patient history and clinical course. Two physicians, blinded to all clinical information, independently interpreted the point-of-care lung ultrasound and then established a consensus diagnosis (ultrasound diagnosis). The ultrasound diagnosis was compared with an independent, standardized review of the medical record following hospital discharge (final diagnosis). MEASUREMENTS AND RESULTS Eighty-eight patients were enrolled in the study. Forty-eight patients had a final diagnosis of bronchiolitis/viral pneumonitis (55%), 29 had pneumonia (33%), 10 had status asthmaticus (11%), and one was excluded because of an inability to differentiate the final diagnosis. Point-of-care lung ultrasound correctly identified the etiology of acute respiratory failure in 56% of patients (49/87; 95% CI, 46-66%). It identified bronchiolitis/viral pneumonitis with 44% sensitivity (95% CI, 0.31-0.58) and 74% specificity (95% CI, 0.59-0.85), pneumonia with 76% sensitivity (95% CI, 0.58-0.88) and 67% specificity (95% CI 0.54-0.78), and status asthmaticus with 60% sensitivity (95% CI, 0.31-0.83) and 88% specificity (95% CI, 0.79-0.94). CONCLUSIONS In contrast to literature demonstrating high utility differentiating the cause of acute respiratory failure in adults, blinded point-of-care lung ultrasound demonstrates moderate sensitivity and specificity in identifying the etiology of pediatric acute respiratory failure at admission to the PICU among children with bronchiolitis, pneumonia, and status asthmaticus.
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Affiliation(s)
- Ryan L DeSanti
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Awni M Al-Subu
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Eileen A Cowan
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Nicole N Kamps
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Michael R Lasarev
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Jessica Schmidt
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Pierre D Kory
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Emergency Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
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49
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Punsmann S, Hellige M, Hoppe J, Freise F, Venner M. Diagnostic imaging in acute interstitial pneumonia in foals: High variability of interpretation of chest radiographs and good conformity between ultrasonographic and post-mortem findings. Vet Radiol Ultrasound 2021; 62:490-497. [PMID: 33823075 DOI: 10.1111/vru.12972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 02/11/2021] [Accepted: 02/14/2021] [Indexed: 11/28/2022] Open
Abstract
Acute interstitial pneumonia (AIP) in foals is a rare but challenging syndrome. Diagnostic imaging is crucial for its diagnosis. While there are some reports on radiographic findings, ultrasound is sparsely described. Variability in the evaluation of radiographs in AIP has been well described in human literature. Part one of this study is a prospective, observational, observer agreement study investigating inter- and intraobserver agreement in the assessment of thoracic radiographs. Part two is a prospective, controlled, descriptive study on thoracic ultrasonography in foals with AIP. Eighteen foals with AIP were examined daily by thoracic ultrasound. Thoracic radiographs were taken on three successive occasions. Blinded radiographs were assessed by three observers based on two semi-quantitative scores (pattern recognition, subjective evaluation). Foals that died underwent postmortem examination (n = 9); postmortem findings were compared to ultrasound findings on the day of death. Ultrasonographic findings were consistent with postmortem findings. Comet tail scores in foals with AIP were significantly higher (p < 0.0001) than in control foals. Interrater agreement for the assessment of radiographs was none to moderate (κ = 0.07-0.65) for pattern recognition and weak to moderate (κ = 0.58-0.62) for subjective scoring. Intrarater agreement varied from minimal to strong (κ = 0.30-0.80) for pattern recognition but was strong (κ = 0.83) for subjective scoring. In conclusion, the diagnostic value of thoracic ultrasound in foals with AIP is high due to good conformity with postmortem findings. The evaluation of thoracic radiographs showed high variability in inter- and intra-agreement.
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Affiliation(s)
- Sophia Punsmann
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Maren Hellige
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Judith Hoppe
- Department of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Fritjof Freise
- Institute for Biometry, Epidemiology, and Information Processing, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
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50
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Clevert DA, Sidhu PS, Lim A, Ewertsen C, Mitkov V, Piskunowicz M, Ricci P, Bargallo N, Brady AP. The role of lung ultrasound in COVID-19 disease. Insights Imaging 2021; 12:81. [PMID: 34146161 PMCID: PMC8214066 DOI: 10.1186/s13244-021-01013-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/11/2021] [Indexed: 12/17/2022] Open
Abstract
This statement summarises basic settings in lung ultrasonography and best practice recommendations for lung ultrasonography in COVID-19, representing the agreed consensus of experts from the Ultrasound Subcommittee of the European Society of Radiology (ESR). Standard lung settings and artefacts in lung ultrasonography are explained for education and training, equipment settings, documentation and self-protection.
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