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Shim J, Lee Y. No-Reference-Based and Noise Level Evaluations of Cinematic Rendering in Bone Computed Tomography. Bioengineering (Basel) 2024; 11:563. [PMID: 38927799 PMCID: PMC11201129 DOI: 10.3390/bioengineering11060563] [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: 04/11/2024] [Revised: 05/07/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Cinematic rendering (CR) is a new 3D post-processing technology widely used to produce bone computed tomography (CT) images. This study aimed to evaluate the performance quality of CR in bone CT images using blind quality and noise level evaluations. Bone CT images of the face, shoulder, lumbar spine, and wrist were acquired. Volume rendering (VR), which is widely used in the field of diagnostic medical imaging, was additionally set along with CR. A no-reference-based blind/referenceless image spatial quality evaluator (BRISQUE) and coefficient of variation (COV) were used to evaluate the overall quality of the acquired images. The average BRISQUE values derived from the four areas were 39.87 and 46.44 in CR and VR, respectively. The difference between the two values was approximately 1.16, and the difference between the resulting values increased, particularly in the bone CT image, where metal artifacts were observed. In addition, we confirmed that the COV value improved by 2.20 times on average when using CR compared to VR. This study proved that CR is useful in reconstructing bone CT 3D images and that various applications in the diagnostic medical field will be possible.
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Affiliation(s)
- Jina Shim
- Department of Diagnostic Radiology, Severance Hospital, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea;
| | - Youngjin Lee
- Department of Radiological Science, Gachon University, Incheon 21936, Republic of Korea
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2
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Martinez Trevino EF, Sohail M, Mijares-Rojas IA, Qaddorah S, Levenson A. Endobronchial Obstruction: A Case of Well-Differentiated Liposarcoma. Cureus 2024; 16:e57731. [PMID: 38711696 PMCID: PMC11073832 DOI: 10.7759/cureus.57731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2024] [Indexed: 05/08/2024] Open
Abstract
Atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL) is a rare subtype of endobronchial tumor that has been rarely reported in medical literature. Due to its low incidence, distinguishing it from endobronchial lipoma poses a significant diagnostic challenge, necessitating histopathologic and cytogenetic analysis. As of today, the treatment and surveillance protocols for these neoplasms remain poorly defined, often resulting in their misclassification and treatment as endobronchial lipomas. We present a case involving a 72-year-old male who presented with worsening dyspnea and cough. Diagnostic imaging revealed an endobronchial lesion obstructing the left main bronchus. The patient underwent a flexible bronchoscopy that identified a polypoid mass causing significant obstruction, which was subsequently resected via cryoablation. Histopathology confirmed ALT/WDL, supported by genetic analysis revealing chromosomal alterations. Following the intervention, symptoms resolved, with no recurrence on follow-up imaging. Differentiating ALT/WDL from endobronchial lipomas is necessary not only because it influences treatment decisions but also because it can significantly affect the prognosis of patients diagnosed with ALT/WDL. In this case, we emphasize the importance of considering ALT/WDL in the differential diagnosis of endobronchial tumors and highlight the use of flexible bronchoscopy as a viable substitute for rigid bronchoscopy, serving not only as a diagnostic tool but also as a therapeutic method.
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Affiliation(s)
| | - Momena Sohail
- Pulmonary and Critical Care Medicine, John H. Stroger, Jr. Hospital of Cook County, Chicago, USA
| | | | - Seba Qaddorah
- Internal Medicine, John H. Stroger, Jr. Hospital of Cook County, Chicago, USA
| | - Anne Levenson
- Pulmonary and Critical Care Medicine, John H. Stroger, Jr. Hospital of Cook County, Chicago, USA
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3
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Wang SC, Yin LK, Zhang Y, Xue LM, Ye JD, Tao GY, Yu H, Qiang JW. Contrast-enhanced CT longitudinal tail sign as a marker of positive resection margins in adenoid cystic carcinoma of the central airway. J Thorac Dis 2021; 13:2803-2811. [PMID: 34164172 PMCID: PMC8182504 DOI: 10.21037/jtd-20-2929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Background Due to submucosal infiltration’s biological nature along the airway, adenoid cystic carcinoma (ACC) frequently leaves positive surgical margins. This study evaluated the clinicopathologic, and computed tomography (CT) features for predicting surgical margin status in central airway ACC. Methods We retrospectively analyzed the files of 71 patients with ACC of the central airway proven by histopathology and surgery who had presented between January 2010 and December 2018. All patients were classified into positive and negative surgical margin groups according to margin status. Univariate analysis and multivariable logistic regression models were then performed to compare demography, histopathology, and CT characteristics between ACC patients with positive and negative margins. Results After surgical resection, 59 (83.1%) patients had positive margins, and 12 (16.9%) had negative margins. The contrast-enhanced CT (CECT) longitudinal tail sign (LTS) was identified in 55 of 59 (93.2%) patients with positive margins and was the only feature that had a significant association with positive margins (odds ratio 41.250, 95% CI: 7.886–215.767; P<0.001). Moreover, positive margins in upper or/and lower directions were associated with the LTS in corresponding directions (P<0.001). Conclusions Most central airway ACC patients exhibited positive margins following surgery. The appearance of the LTS on CECT was significantly associated with positive margins and could help preoperatively predict the submucosal invasion of ACC.
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Affiliation(s)
- Shu-Chao Wang
- Department of Radiology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Le-Kang Yin
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yu Zhang
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Li-Min Xue
- Department of Radiology, Jinshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Imaging Medicine, Fudan University, Shanghai, China
| | - Jian-Ding Ye
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Guang-Yu Tao
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hong Yu
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-Wei Qiang
- Department of Radiology, Jinshan Hospital, Fudan University, Shanghai, China
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Wang SC, Yin LK, Zhang Y, Xue LM, Ye JD, Tao GY, Yu H, Qiang JW. CT diagnosis and prognosis prediction of tracheal adenoid cystic carcinoma. Eur J Radiol 2021; 140:109746. [PMID: 33992979 DOI: 10.1016/j.ejrad.2021.109746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 04/08/2021] [Accepted: 04/26/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE To evaluate computed tomography (CT) features and establish a predictive model for the clinical diagnosis and prognosis of tracheal adenoid cystic carcinoma (ACC). METHOD From January 2010 to December 2018, 82 patients with tracheal tumors, including 46 patients with ACC confirmed by surgery and histopathology, were enrolled in this study. These patients' clinicopathologic information, CT features and survival outcomes were recorded and analyzed. Independent predictors of diagnosis and prognosis of tracheal ACC were determined by both univariate and multivariate analyses. RESULTS Compared with tracheal non-ACC patients, univariate analysis showed that ACC patients were more likely to have extensive longitudinal length (p < 0.001) and to appear as annular wall thickening (p = 0.001), transmural growth (p = 0.036), poorly defined border (p = 0.003) and mild enhancement (p = 0.001). Multivariate logistic analysis showed that longitudinal length and enhancement degree were independent predictors of tracheal ACC. The 3-year and 5-year disease-free survival (DFS) were 75.7 % and 64.5 %, respectively. Longitudinal length (≥ 34 mm), transverse length (≥ 20 mm) and transmural growth were associated with poor DFS in univariate analysis. After multivariate adjustment, only transverse length (≥ 20 mm) was an adverse prognostic factor for DFS (hazard ratio = 4.594, 95 % confidence interval = 1.240-17.017; p = 0.022). CONCLUSIONS CT longitudinal length and enhancement degree of tumors showed satisfactory discrimination for tracheal ACC. Excessive CT transverse length might be an unfavorable indicator for ACC recurrence and could be helpful for predicting the survival outcomes of ACC at the initial diagnosis.
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Affiliation(s)
- Shu Chao Wang
- Department of Radiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China
| | - Le Kang Yin
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Shanghai, 200030, China
| | - Yu Zhang
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Shanghai, 200030, China
| | - Li Min Xue
- Department of Radiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China; Shanghai Institute of Imaging Medicine, Fudan University, 180 Fenglin Road, Shanghai, 200030, China
| | - Jian Ding Ye
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Shanghai, 200030, China
| | - Guang Yu Tao
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Shanghai, 200030, China
| | - Hong Yu
- Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Shanghai, 200030, China.
| | - Jin Wei Qiang
- Department of Radiology, Jinshan Hospital, Fudan University, 1508 Longhang Road, Shanghai, 201508, China.
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Chinzei N, Noda M, Nashiki H, Matsushita T, Inui A, Hayashi S. Conventional computed tomography software can be used for accurate pre-operative templating in bipolar hip arthroplasty: A preliminary report. J Clin Orthop Trauma 2020; 13:1-8. [PMID: 33680803 PMCID: PMC7919960 DOI: 10.1016/j.jcot.2020.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/22/2020] [Accepted: 09/01/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the use of pre-operative templating for bipolar hip arthroplasty (BHA) for displaced femoral neck fracture using multiplanar reconstruction (MPR) of computed tomography (CT) images. METHODS Nineteen patients who underwent BHA were enrolled in this study. For pre- and post-operative evaluation, a CT scan was performed from the pelvis to the knee joints. MPR of the CT image was done using software to measure the femoral head cup diameter, offset, stem size, length of the modular neck, distance from the neck osteotomy, and femoral anteversion. We compared these parameters pre- and post-operatively. RESULTS Both the femoral head cup diameter and length of the modular neck were found to be significantly different between pre- and post-operative measurements, although the differences were minor. Other parameters, including the femoral offset, were not significantly different between the pre- and post-operative measurements. The size of the femoral stem, cup diameter, and length of the modular neck were consistent with the planned size and accurate (within ±1 size) in more than 84% cases. CONCLUSION Our pre-operative templating approach for BHA using MPR of CT has potential clinical utility as a complementary tool for pre-operative planning using three-dimensional templating software. Moreover, this technique could be feasible in most hospitals without additional expenditure.
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Affiliation(s)
- Nobuaki Chinzei
- Department of Orthopaedic Surgery, Konan Medical Center, 658-0072, Japan,Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Mitsuaki Noda
- Department of Orthopaedic Surgery, Nishi Hospital, Kobe, 657-0037, Japan,Corresponding author.Department of Orthopaedic Surgery, Nishi Hospital, 3-2-18 Bingo-cho, Nada-ku, Kobe, 657-0037, Japan.
| | - Hiroshi Nashiki
- Department of Radiology, Nishi Hospital, Kobe, 657-0037, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan,Department of Orthopaedic Surgery, Nishi Hospital, Kobe, 657-0037, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan,Department of Orthopaedic Surgery, Nishi Hospital, Kobe, 657-0037, Japan
| | - Shinya Hayashi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
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Atanasov Mitev M, Dosev Obretenov E, Georgiev Valchev D. Localization and shape of stenoses in central lung carcinoma - Sensitivity and precision of MDCT VB and FB. Acta Clin Croat 2020; 59:252-259. [PMID: 33456112 PMCID: PMC7808220 DOI: 10.20471/acc.2020.59.02.08] [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] [Indexed: 12/02/2022] Open
Abstract
The objective is to present diagnostic capabilities of virtual bronchoscopy (VB) and fiberoptic bronchoscopy (FB) for determining the localization and shape of stenoses in patients with central lung carcinoma. A systematic study was performed on 220 patients aged 11-83 (54.36±17.24) years with endobronchial disease using the FB and VB methods during the 2013-2017 period. Central carcinoma of the lung was found on VB in 130 patients and on FB in 120 patients. Other nosologic diseases were found in 22 patients. Right localization of central carcinoma prevailed over left localization in both sexes. A significant difference in the localization criterion was found in female patients examined by VB (U-test, p=0.01). VB and FB yielded 86.5% vs. 91.60% precision and 85% vs. 94.5% sensitivity. In conclusion, VB was found to be a successful noninvasive method for determining the localization of lung tumors and shape of stenoses, which are essential in the diagnosis of malignant processes.
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Affiliation(s)
| | - Evelin Dosev Obretenov
- 1Department of Medical Physics, Biophysics, Roentgenology and Radiology, Faculty of Medicine, Department of Diagnostic Imaging, St. Kirkovich University Hospital, Trakia University-Stara Zagora, Stara Zagora, Bulgaria; 2Department of Special Surgery/Thoracic Surgery, Vascular Surgery, Pediatric Surgery and Orthopedics and Traumatology, Faculty of Medicine, Division of Thoracic Surgery, St. Kirkovich University Hospital, Trakia University-Stara Zagora, Stara Zagora, Bulgaria
| | - Daniel Georgiev Valchev
- 1Department of Medical Physics, Biophysics, Roentgenology and Radiology, Faculty of Medicine, Department of Diagnostic Imaging, St. Kirkovich University Hospital, Trakia University-Stara Zagora, Stara Zagora, Bulgaria; 2Department of Special Surgery/Thoracic Surgery, Vascular Surgery, Pediatric Surgery and Orthopedics and Traumatology, Faculty of Medicine, Division of Thoracic Surgery, St. Kirkovich University Hospital, Trakia University-Stara Zagora, Stara Zagora, Bulgaria
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Xiao Z, Tang Z, Wu L, Feng X, Sun X, Tang W, Wang J, Jin L, Wang R. Manganese-enhanced magnetic resonance imaging in the whole visual pathway: chemical identification and neurotoxic changes. Acta Radiol 2019; 60:1653-1662. [PMID: 30922072 DOI: 10.1177/0284185119840227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zebin Xiao
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
| | - Zuohua Tang
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
| | - Lingjie Wu
- Department of Otolaryngology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
| | - Xiaoyuan Feng
- Department of Radiology, Huashan Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
| | - Xinghuai Sun
- Department of Ophthalmology & Visual Science, Eye & ENT Hospital of Shanghai Medical School, State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Fudan University, Key Laboratory of Myopia, NHFPC (Fudan University), and Shanghai Key Laboratory of Visual Impairment and Restoration, Fudan University, Shanghai, PR China
| | - Weijun Tang
- Department of Radiology, Huashan Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
| | - Jie Wang
- Department of Radiotherapy, Eye & ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
| | - Lixin Jin
- Siemens Ltd., Healthcare Sector, Shanghai, PR China
| | - Rong Wang
- Department of Radiology, Eye & ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, PR China
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8
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Ferderbar ML, Doyle TE, Samavi R, Koff D. An Environmental Scan of the National and Provincial Diagnostic Reference Levels in Canada for Common Adult Computed Tomography Scans. Can Assoc Radiol J 2019; 70:119-124. [PMID: 30772107 DOI: 10.1016/j.carj.2018.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 07/25/2018] [Accepted: 07/25/2018] [Indexed: 12/27/2022] Open
Abstract
Several regulatory bodies have agreed that low-dose radiation used in medical imaging is a weak carcinogen that follows a linear, non-threshold model of cancer risk. While avoiding radiation is the best course of action to mitigate risk, computed tomography (CT) scans are often critical for diagnosis. In addition to the as low as reasonably achievable principle, a more concrete method of dose reduction for common CT imaging exams is the use of a diagnostic reference level (DRL). This paper examines Canada's national DRL values from the recent CT survey and compares it to published provincial DRLs as well as the DRLs in the United Kingdom and the United States of America for the 3 most common CT exams: head, chest, and abdomen/pelvis. Canada compares well on the international scale, but it should consider using more electronic dose monitoring solutions to create a culture of dose optimization.
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Affiliation(s)
| | - Thomas E Doyle
- McMaster eHealth Program, McMaster University, Hamilton, Ontario, Canada
| | - Reza Samavi
- Department of Computing and Software, McMaster University, Hamilton, Ontario, Canada
| | - David Koff
- Department of Radiology, McMaster University, Hamilton, Ontario, Canada
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Kandathil A, Kay F, Batra K, Saboo SS, Rajiah P. Advances in Computed Tomography in Thoracic Imaging. Semin Roentgenol 2018; 53:157-170. [PMID: 29861007 DOI: 10.1053/j.ro.2018.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Asha Kandathil
- Cardiothoracic Imaging, Radiology Department, UT Southwestern Medical Center, Dallas, TX
| | - Fernando Kay
- Cardiothoracic Imaging, Radiology Department, UT Southwestern Medical Center, Dallas, TX
| | - Kiran Batra
- Cardiothoracic Imaging, Radiology Department, UT Southwestern Medical Center, Dallas, TX
| | - Sachin S Saboo
- Cardiothoracic Imaging, Radiology Department, UT Southwestern Medical Center, Dallas, TX
| | - Prabhakar Rajiah
- Cardiothoracic Imaging, Radiology Department, UT Southwestern Medical Center, Dallas, TX.
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10
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Survival trends in patients with tracheal carcinoma from 1973 to 2011. Am J Otolaryngol 2017; 38:673-677. [PMID: 28927948 DOI: 10.1016/j.amjoto.2017.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 08/21/2017] [Accepted: 08/23/2017] [Indexed: 11/22/2022]
Abstract
PURPOSE The prognosis for primary tracheal cancer is dismal. We investigated whether there has been improvement in survival in tracheal cancer patients and how treatment modality affected overall and cancer-specific survival. MATERIALS AND METHODS Using the Surveillance, Epidemiology, and End Results database, 1144 patients with tracheal cancer were identified between 1973 and 2011. Patients were stratified by age group, gender, race, tumor histology, and treatment modality. Radical surgery and survival rates based upon these stratifications were determined. Longitudinal analyses of survival and the percentage of patients undergoing surgery and radiation were conducted. RESULTS In the final cohort, 327 tracheal cancer patients (34%) underwent radical surgery. Patients of younger age, female gender, and who presented with non-squamous cell tumors were statistically more likely to undergo surgery. Over time, utilization of radiation has declined while use of radical surgery has increased. Concomitantly, 5-year survival has increased from approximately 25% in 1973 to 30% by 2006. Those who did not have surgery were 2.50 times more likely to die of tracheal cancer (95% Confidence Interval 2.00-3.11, p<0.001) than those who did have surgery. Additionally, patients who underwent radical surgery alone (without adjuvant radiation therapy) were 50% or 19% less likely to die of tracheal cancer than those who underwent no treatment or combination therapy, respectively (both p<0.001). CONCLUSIONS Survival in patients with tracheal cancer is improving over time. The utilization of radical surgery is increasing and confers the highest survival advantage to patients who are candidates.
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Scarlata S, Fuso L, Lucantoni G, Varone F, Magnini D, Antonelli Incalzi R, Galluccio G. The technique of endoscopic airway tumor treatment. J Thorac Dis 2017; 9:2619-2639. [PMID: 28932570 DOI: 10.21037/jtd.2017.07.68] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
More than half of primary lung cancers are not resectable at diagnosis and 40% of deaths may be secondary to loco-regional disease. Many of these patients suffer from symptoms related to airways obstruction. Indications for therapeutic endoscopic treatment are palliation of dyspnea and other obstructive symptoms in advanced cancerous lesions and cure of early lung cancer. Bronchoscopic management is also indicated for all those patients suffering from benign or minimally invasive neoplasm who are not suitable for surgery due to their clinical conditions. Clinicians should select cases, evaluating tumor features (size, location) and patient characteristics (age, lung function impairment) to choose the most appropriate endoscopic technique. Laser therapy, electrocautery, cryotherapy and stenting are well-described techniques for the palliation of symptoms due to airway involvement and local treatment of endobronchial lesions. Newer technologies, with an established role in clinical practice, are endobronchial ultrasound (EBUS), autofluorescence bronchoscopy (AFB), and narrow band imaging (NBI). Other techniques, such as endobronchial intra-tumoral chemotherapy (EITC), EBUS-guided-transbronchial needle injection or bronchoscopy-guided radiofrequency ablation (RFA), are in development for the use within the airways. These endobronchial interventions are important adjuncts in the multimodality management of lung cancer and should become standard considerations in the management of patients with advanced lung cancer, benign or otherwise not approachable central airway lesions. We aimed at revising several endobronchial treatment modalities that can augment standard antitumor therapies for advanced lung cancer, including rigid and flexible bronchoscopy, laser therapy, endobronchial prosthesis, and photodynamic therapy (PDT).
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Affiliation(s)
- Simone Scarlata
- Geriatrics, Unit of Respiratory Pathophysiology and Thoracic Endoscopy, Campus Bio Medico University and Teaching Hospital, Rome, Italy
| | - Lello Fuso
- Bronchoscopy and Pneumology Unit, Catholic University, Rome, Italy
| | | | - Francesco Varone
- Bronchoscopy and Pneumology Unit, Catholic University, Rome, Italy
| | - Daniele Magnini
- Bronchoscopy and Pneumology Unit, Catholic University, Rome, Italy
| | - Raffaele Antonelli Incalzi
- Geriatrics, Unit of Respiratory Pathophysiology and Thoracic Endoscopy, Campus Bio Medico University and Teaching Hospital, Rome, Italy
| | - Gianni Galluccio
- Unit of Thoracic Endoscopy, San Camillo Forlanini Hospital, Rome, Italy
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Cinematic Rendering in CT: A Novel, Lifelike 3D Visualization Technique. AJR Am J Roentgenol 2017; 209:370-379. [DOI: 10.2214/ajr.17.17850] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Tang Z, Wu L, Xiao Z, Feng X, Sun X, Tang W, Wang J, Jin L. Manganese-enhanced MRI (ME MRI) in evaluation of the auditory pathway in an experimental rat model. NMR IN BIOMEDICINE 2017; 30:e3677. [PMID: 27976435 DOI: 10.1002/nbm.3677] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 11/01/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
This study aimed to explore the optimal dose and manner of administration for visualization of the auditory pathway on manganese-enhanced MRI (ME MRI). Twenty-four healthy male Sprague-Dawley rats were randomly divided into three experimental groups (n = 8 for Groups A, B and C). The rats in Groups A, B and C were subjected to MnCl2 injection through the tympanum, inner ear endolymph and perilymph, respectively (0.2 M for four rats and 0.4 M for the others in each group) and observed at 1, 2, 3, 4, 7 and 10 days after the operation with 3.0 T MRI. The signal intensity (SI) and dynamic changes of the auditory pathways at various times, and at two doses through three injection routes, were compared by statistical analysis. Administration of MnCl2 through the perilymph best showed the complete auditory pathway (P < 0.01), whereas administration though the tympanum only demonstrated part of the pathway. The SI was highest at 24 h after administration of the tracer and began to decline at 48 h. The SI of the auditory cortex was higher after the injection of 0.4 M MnCl2 than that of 0.2 M MnCl2 . ME MRI best demonstrated the whole auditory pathway at 24 h after the injection of 0.4 M MnCl2 through the perilymph in the rat, which provided an optimal method for the study of ME MRI of the auditory pathway in the animal model.
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Affiliation(s)
- Zuohua Tang
- Department of Radiology, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Lingjie Wu
- Department of Otolaryngology, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Zebin Xiao
- Department of Radiology, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Xiaoyuan Feng
- Department of Radiology, Huashan Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Xinghuai Sun
- Department of Ophthalmology, Eye and ENT Hospital of Shanghai Medical School, State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Fudan University, Shanghai, China
| | - Weijun Tang
- Department of Radiology, Huashan Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Jie Wang
- Department of Radiotherapy, Eye and ENT Hospital of Shanghai Medical School, Fudan University, Shanghai, China
| | - Lixin Jin
- Siemens Ltd. Healthcare Sector, Shanghai, China
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Abstract
Tumors of trachea and bronchi are uncommon and can occur in the form of benign or low- and high-grade malignant tumors. Although tracheobronchial tumors (TBTs) represent only 0.6% of all pulmonary tumors, they are clinically significant. Delays in diagnosis of these tumors commonly occur because the signs and symptoms caused by these tumors are nonspecific and chest radiographs are often considered unremarkable. Therefore, novel radiological techniques and better access to flexible bronchoscopy enable detection of larger number of TBT. The purpose of this article is to provide a review of tracheal and bronchial tumors and discuss significant aspects of the different TBT with focus on clinical manifestations and diagnostic procedures.
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Affiliation(s)
- Ruza Stevic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia;; Center for Radiology and MRI, Clinical Center of Serbia, Belgrade, Serbia
| | - Branislava Milenkovic
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia;; Clinic for Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
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15
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Lin CY, Chung FT. Central airway tumors: interventional bronchoscopy in diagnosis and management. J Thorac Dis 2016; 8:E1168-E1176. [PMID: 27867582 DOI: 10.21037/jtd.2016.10.101] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The diagnosis of central airway tumors is usually challenging because of the vague presentations. Advances in visualization technology in bronchoscopy aid early detection of bronchial lesion. Cryotechnology has great impact on endobronchial lesion sampling and provides better diagnostic yield. Airway tumor involvements result in significant alteration in life quality and lead to poor life expectancy. Timely and efficiently use ablation techniques by heat or cold energy provide symptoms relief for central airway obstruction. Prostheses implantation is effective in maintaining airway patency after ablative procedure or external compression. Combined interventional bronchoscopy modalities and other adjunctive therapies have improvement in quality of life and further benefit in survival. This review aims to provide a diagnostic approach to central airway tumors and an overview of currently available techniques of interventional bronchoscopy in managing symptomatic central airway obstruction.
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Affiliation(s)
- Chun-Yu Lin
- Department of Thoracic Medicine, Saint Paul's Hospital, Taoyuan, Taiwan; ; Department of General Medicine & Geriatrics, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; ; College of Medicine Chang Gung University, Taoyuan, Taiwan
| | - Fu-Tsai Chung
- Department of Thoracic Medicine, Saint Paul's Hospital, Taoyuan, Taiwan; ; College of Medicine Chang Gung University, Taoyuan, Taiwan; ; Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
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