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Aydın E, Durmuş F, Torlak N, Oria M, Güler Bayazıt N, Öztürk Işık E, Aslanyürek B, Peiro JL. Pulmonary vasculature development in congenital diaphragmatic hernia: a novel automated quantitative imaging analysis. Pediatr Surg Int 2024; 40:81. [PMID: 38498203 DOI: 10.1007/s00383-024-05643-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/28/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE Impaired fetal lung vasculature determines the degree of pulmonary hypertension in the congenital diaphragmatic hernia (CDH). This study aims to demonstrate the morphometric measurements that differ in pulmonary vessels of fetuses with CDH. METHODS Nitrofen-induced CDH Sprague-Dawley rat fetuses were scanned with microcomputed tomography. The analysis of the pulmonary vascular tree was performed with artificial intelligence. RESULTS The number of segments in CDH was significantly lower than that in the control group on the left (U = 2.5, p = 0.004) and right (U = 0, p = 0.001) sides for order 1(O1), whereas there was a significant difference only on the right side for O2 and O3. The pooled element numbers in the control group obeyed Horton's law (R2 = 0.996 left and R2 = 0.811 right lungs), while the CDH group broke it. Connectivity matrices showed that the average number of elements of O1 springing from elements of O1 on the left side and the number of elements of O1 springing from elements of O3 on the right side were significantly lower in CDH samples. CONCLUSION According to these findings, CDH not only reduced the amount of small order elements, but also destroyed the fractal structure of the pulmonary arterial trees.
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Affiliation(s)
- Emrah Aydın
- Division of Pediatric General and Thoracic Surgery, The Center for Fetal and Placental Research, Cincinnati Fetal Center, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, USA.
| | - Furkan Durmuş
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
| | - Nilhan Torlak
- Division of Pediatric General and Thoracic Surgery, The Center for Fetal and Placental Research, Cincinnati Fetal Center, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, USA
| | - Marc Oria
- Division of Pediatric General and Thoracic Surgery, The Center for Fetal and Placental Research, Cincinnati Fetal Center, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, USA
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Nilgün Güler Bayazıt
- Department A: Mathematical Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Esin Öztürk Işık
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
| | - Birol Aslanyürek
- Department A: Mathematical Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Jose L Peiro
- Division of Pediatric General and Thoracic Surgery, The Center for Fetal and Placental Research, Cincinnati Fetal Center, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, USA
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Choi W, Cho WC, Choi ES, Yun TJ, Park CS. Outcomes after Extracorporeal Membrane Oxygenation in Neonates with Congenital Diaphragmatic Hernia: A Single-Center Experience. J Chest Surg 2021; 54:348-355. [PMID: 34611083 PMCID: PMC8548188 DOI: 10.5090/jcs.21.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 11/24/2022] Open
Abstract
Background Congenital diaphragmatic hernia (CDH) is a rare disease often requiring mechanical ventilation after birth. In severe cases, extracorporeal membrane oxygenation (ECMO) may be needed. This study analyzed the outcomes of patients with CDH treated with ECMO and investigated factors related to in-hospital mortality. Methods Among 254 newborns diagnosed with CDH between 2008 and 2020, 51 patients needed ECMO support. At Asan Medical Center, a multidisciplinary team approach has been applied for managing newborns with CDH since 2018. Outcomes were compared between hospital survivors and nonsurvivors. Results ECMO was established at a median of 17 hours after birth. The mean birth weight was 3.1±0.5 kg. Twenty-three patients (23/51, 45.1%) were weaned from ECMO, and 16 patients (16/51, 31.4%) survived to discharge. The ECMO mode was veno-venous in 24 patients (47.1%) and veno-arterial in 27 patients (52.9%). Most cannulations (50/51, 98%) were accomplished through a transverse cervical incision. No significant between-group differences in baseline characteristics and prenatal indices were observed. The oxygenation index (1 hour before 90.0 vs. 51.0, p=0.005) and blood lactate level (peak 7.9 vs. 5.2 mmol/L, p=0.023) before ECMO were higher in nonsurvivors. Major bleeding during ECMO more frequently occurred in nonsurvivors (57.1% vs. 12.5%, p=0.007). In the multivariate analysis, the oxygenation index measured at 1 hour before ECMO initiation was identified as a significant risk factor for in-hospital mortality (odds ratio, 1.02; 95% confidence interval, 1.01–1.04; p=0.05). Conclusion The survival of neonates after ECMO for CDH is suboptimal. Timely application of ECMO is crucial for better survival outcomes.
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Affiliation(s)
- Wooseok Choi
- Division of Pediatric Cardiac Surgery, Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Chul Cho
- Department of Thoracic and Cardiovascular Surgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea
| | - Eun Seok Choi
- Division of Pediatric Cardiac Surgery, Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae-Jin Yun
- Division of Pediatric Cardiac Surgery, Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chun Soo Park
- Division of Pediatric Cardiac Surgery, Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Danzer E, Edgar JC, Eppley E, Goldshore MA, Chotzoglou E, Herkert LM, Oliver ER, Rintoul NE, Panitch H, Adzick NS, Hedrick HL, Victoria T. Predicting neonatal outcomes in infants with giant omphalocele using prenatal magnetic resonance imaging calculated observed-to-expected fetal lung volumes. Prenat Diagn 2021; 41:1439-1448. [PMID: 34473853 DOI: 10.1002/pd.6040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/21/2021] [Accepted: 08/30/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To examine the association between prenatal magnetic resonance imaging (MRI) based observed/expected total lung volume (O/E TLV) and outcome in neonates with giant omphalocele (GO). METHODS Between 06/2004 and 12/2019, 67 cases with isolated GO underwent prenatal and postnatal care at our institution. MRI-based O/E TLVs were calculated based on normative data from Meyers and from Rypens and correlated with postnatal survival and morbidities. O/E TLV scores were grouped based on severity into <25% (severe), between 25% and 50% (moderate), and >50% (mild) for risk stratification. RESULTS O/E TLV was calculated for all patients according to Meyers nomograms and for 49 patients according to Rypens nomograms. Survival for GO neonates with severe, moderate, and mild pulmonary hypoplasia based on Meyers O/E TLV categories was 60%, 92%, and 96%, respectively (p = 0.04). There was a significant inverse association between Meyers O/E TLV and risk of neonatal morbidities (p < 0.05). A similar trend was observed with Rypens O/E TLV, but associations were less often significant likely related to the smaller sample size. CONCLUSION Neonatal outcomes are related to fetal lung size in isolated GO. Assessment of Meyers O/E TLV allows identification of GO fetuses at greatest risk for complications secondary to pulmonary hypoplasia.
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Affiliation(s)
- Enrico Danzer
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - J Christopher Edgar
- Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Elizabeth Eppley
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Matthew A Goldshore
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Etze Chotzoglou
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Lisa M Herkert
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Edward R Oliver
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Natalie E Rintoul
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Howard Panitch
- Division of Pulmonary Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - N Scott Adzick
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Holly L Hedrick
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Teresa Victoria
- The Center for Fetal Diagnosis and Treatment, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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Kolbe AB, Ibirogba ER, Thomas KB, Hull NC, Thacker PG, Hathcock M, Sangi-Haghpeykar H, Ruano R. Reproducibility of Lung and Liver Volume Measurements on Fetal Magnetic Resonance Imaging in Left-Sided Congenital Diaphragmatic Hernia. Fetal Diagn Ther 2021; 48:258-264. [PMID: 33756472 DOI: 10.1159/000512491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/22/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Congenital diaphragmatic hernia (CDH) affects 1 in 3,000 live births and is associated with significant morbidity and mortality. METHODS A review of fetal magnetic resonance imaging (MRI) examinations was performed for fetuses with left CDH and normal lung controls. Image review and manual tracings were performed by 4 pediatric radiologists; right and left lung volumes in the coronal and axial planes as well as liver volume above and below the diaphragm in the coronal plane were measured. Intra- and interreviewer reproducibility was assessed using intraclass correlation coefficient (ICC) and Bland-Altman analysis. RESULTS Excellent intra- and interreviewer reproducibility of the right and left lung volume measurements was observed in both axial planes (interreviewer ICC: right lung: 0.97, 95% CI: 0.95-0.99; left lung: 0.97, 95% CI: 0.95-0.98) and coronal planes (interreviewer ICC: right lung: 0.97, 95% CI: 0.95-0.98; left lung: 0.96, 95% CI: 0.93-0.98). Moderate-to-good interreviewer reproducibility was observed for liver volume above the diaphragm (ICC 0.7, 95% CI: 0.59-0.81). Liver volume below the diaphragm had a good-to-excellent interreviewer reproducibility (ICC 0.88, 95% CI: 9.82-0.93). CONCLUSIONS The present study demonstrated an excellent intra- and interreviewer reproducibility of MRI lung volume measurements and good-to-moderate inter- and intrareviewer reproducibility of liver volume measurements after standardization of the methods at our fetal center.
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Affiliation(s)
- Amy B Kolbe
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Eniola R Ibirogba
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Kristen B Thomas
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Nathan C Hull
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Paul G Thacker
- Department of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Matthew Hathcock
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Haleh Sangi-Haghpeykar
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Rodrigo Ruano
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA,
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Perrone EE, Abbasi N, Cortes MS, Umar U, Ryan G, Johnson A, Ladino-Torres M, Ruano R. Prenatal assessment of congenital diaphragmatic hernia at north american fetal therapy network centers: A continued plea for standardization. Prenat Diagn 2020; 41:200-206. [PMID: 33125174 DOI: 10.1002/pd.5859] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/11/2020] [Accepted: 10/23/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Prenatal work-up for congenital diaphragmatic hernia (CDH) is important for risk stratification, standardization, counseling, and optimal therapeutic choice. To determine current practice patterns regarding prenatal CDH work-up, including prenatal ultrasound and magnetic resonance imaging (MRI) use, and to identify areas for standardization of such evaluation between fetal centers. METHODS A survey regarding prenatal CDH work-up was sent to each member center of the North American Fetal Therapy Network (NAFTNet) (n = 36). RESULTS All responded. Sonographic measurement of lung-to-head ratio (LHR) was determined by all, 89% (32/36) of which routinely calculate observed-to-expected LHR. The method for measuring LHR varied: 58% (21/36) used a "trace" method, 25% (9/36) used "longest axis," and 17% (6/36) used an "antero-posterior" method. Fetal MRI was routinely used in 78% (28/36) of centers, but there was significant variability in fetal lung volume measurement. Whereas all generated a total fetal lung volume, the planes, methodology and references values varied significantly. All evaluated liver position, 71% (20/28) evaluated stomach position and 54% (15/28) quantified the degree of liver herniation. More consistency in workup was seen between centers offering fetal intervention. CONCLUSION Prenatal CDH work-up and management differs considerably among North American fetal diagnostic centers, highlighting a need for its standardization.
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Affiliation(s)
- Erin E Perrone
- Department of Surgery, Section of Pediatric Surgery, Fetal Diagnosis and Treatment Center, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Nimrah Abbasi
- Fetal Medicine Unit, Ontario Fetal Centre, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | | | - Uzma Umar
- Department of Surgery, Section of Pediatric Surgery, Fetal Diagnosis and Treatment Center, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Greg Ryan
- Fetal Medicine Unit, Ontario Fetal Centre, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Anthony Johnson
- The Fetal Center, Children's Memorial Hospital, University of Texas Health Science Center, Houston, Texas, USA
| | - Maria Ladino-Torres
- Department of Radiology, Division of Pediatric Radiology, Fetal Diagnosis and Treatment Center, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Rodrigo Ruano
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
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Vincent M, Karolak JA, Deutsch G, Gambin T, Popek E, Isidor B, Szafranski P, Le Caignec C, Stankiewicz P. Clinical, Histopathological, and Molecular Diagnostics in Lethal Lung Developmental Disorders. Am J Respir Crit Care Med 2020; 200:1093-1101. [PMID: 31189067 DOI: 10.1164/rccm.201903-0495tr] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lethal lung developmental disorders are a rare but important group of pediatric diffuse lung diseases presenting with neonatal respiratory failure. On the basis of histopathological appearance at lung biopsy or autopsy, they have been termed: alveolar capillary dysplasia with misalignment of the pulmonary veins, acinar dysplasia, congenital alveolar dysplasia, and other unspecified primary pulmonary hypoplasias. However, the histopathological continuum in these lethal developmental disorders has made accurate diagnosis challenging, which has implications for recurrence risk. Over the past decade, genetic studies in infants with alveolar capillary dysplasia with misalignment of the pulmonary veins have revealed the causative role of the dosage-sensitive FOXF1 gene and its noncoding regulatory variants in the distant lung-specific enhancer at chromosome 16q24.1. In contrast, the molecular bases of acinar dysplasia and congenital alveolar dysplasia have remained poorly understood. Most recently, disruption of the TBX4-FGF10-FGFR2 epithelial-mesenchymal signaling pathway has been reported in patients with these lethal pulmonary dysplasias. Application of next-generation sequencing techniques, including exome sequencing and whole-genome sequencing, has demonstrated their complex compound inheritance. These data indicate that noncoding regulatory elements play a critical role in lung development in humans. We propose that for more precise lethal lung developmental disorder diagnosis, a diagnostic pathway including whole-genome sequencing should be implemented.
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Affiliation(s)
- Marie Vincent
- Service de Genetique Medicale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Université de Nantes, L'institut du Thorax, Nantes, France
| | - Justyna A Karolak
- Department of Molecular and Human Genetics and.,Department of Genetics and Pharmaceutical Microbiology, Poznan University of Medical Sciences, Poznan, Poland
| | - Gail Deutsch
- Department of Pathology, Seattle Children's Hospital, Seattle, Washington
| | - Tomasz Gambin
- Department of Molecular and Human Genetics and.,Department of Medical Genetics, Institute of Mother and Child, Warsaw, Poland; and.,Institute of Computer Science, Warsaw University of Technology, Warsaw, Poland
| | - Edwina Popek
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - Bertrand Isidor
- Service de Genetique Medicale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Université de Nantes, L'institut du Thorax, Nantes, France
| | | | - Cedric Le Caignec
- Service de Genetique Medicale, Centre Hospitalier Universitaire de Nantes, Nantes, France
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Kim AG, Mon RA, Karmakar M, Kreutzman J, Ladino-Torres M, Treadwell MC, Mychaliska GB, Perrone EE. Calculating Observed-to-Expected Total Fetal Lung Volume in CDH Fetuses in Twin Gestation: Is There a Better Way? Fetal Diagn Ther 2019; 47:545-553. [PMID: 31865353 DOI: 10.1159/000504510] [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: 05/02/2019] [Accepted: 10/31/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Congenital diaphragmatic hernia (CDH) is a potentially lethal birth defect, and identifying prenatal predictors of outcome is important. Observed-to-expected total fetal lung volume (o/e TFLV) has been shown to be a predictor of severity and useful in risk stratification but is variable due to different TFLV formulas. OBJECTIVES To calculate o/e TFLV for CDH patients part of a twin gestation using the unaffected sibling as an internal control and comparing these values to those calculated using published formulas for TFLV. METHODS Seven twin gestations with one fetus affected by CDH were identified between 2006 and 2017. The lung volume for each twin was calculated using magnetic resonance imaging (MRI), and o/e TFLV was calculated using the unaffected twin's TFLV. This percentage was then compared to the o/e TFLV calculated using published formulas. RESULTS Lung volumes in the unaffected twins were within normal ranges at the lower end of the spectrum. No single TFLV formula was found to correlate perfectly. Intraclass correlation coefficient estimate was most consistent for o/e TFLV calculated with the Meyers formula and supported by Bland-Altman plots. CONCLUSIONS O/e TFLV measured in CDH/non-CDH twin gestations using the unaffected sibling demonstrated agreement with o/e TFLV calculated using the Meyers formula. We urge the fetal community to standardize the method, use, and interpretation of fetal MRI in the prenatal evaluation of CDH.
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Affiliation(s)
- Aimee G Kim
- Department of Surgery, Section of Pediatric Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA.,Fetal Diagnosis and Treatment CenterUniversity of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Rodrigo A Mon
- Department of Surgery, Section of Pediatric Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Monita Karmakar
- Department of Surgery, Section of Pediatric Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Jeannie Kreutzman
- Department of Surgery, Section of Pediatric Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA.,Fetal Diagnosis and Treatment CenterUniversity of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Maria Ladino-Torres
- Fetal Diagnosis and Treatment CenterUniversity of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA.,Department of Radiology, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Marjorie C Treadwell
- Fetal Diagnosis and Treatment CenterUniversity of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA.,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - George B Mychaliska
- Department of Surgery, Section of Pediatric Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA.,Fetal Diagnosis and Treatment CenterUniversity of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Erin E Perrone
- Department of Surgery, Section of Pediatric Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA, .,Fetal Diagnosis and Treatment CenterUniversity of Michigan, Michigan Medicine, Ann Arbor, Michigan, USA,
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Leocádio RRV, Segundo AKR, Louzada CF. A Sensor for Spirometric Feedback in Ventilation Maneuvers during Cardiopulmonary Resuscitation Training. SENSORS 2019; 19:s19235095. [PMID: 31766452 PMCID: PMC6929026 DOI: 10.3390/s19235095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/02/2019] [Accepted: 11/03/2019] [Indexed: 12/02/2022]
Abstract
This work proposes adapting an existing sensor and embedding it on mannequins used in cardiopulmonary resuscitation (CPR) training to accurately measure the amount of air supplied to the lungs during ventilation. Mathematical modeling, calibration, and validation of the sensor along with metrology, statistical inference, and spirometry techniques were used as a base for aquiring scientific knowledge of the system. The system directly measures the variable of interest (air volume) and refers to spirometric techniques in the elaboration of its model. This improves the realism of the dummies during the CPR training, because it estimates, in real-time, not only the volume of air entering in the lungs but also the Forced Vital Capacity (FVC), Forced Expiratory Volume (FEVt) and Medium Forced Expiratory Flow (FEF20–75%). The validation of the sensor achieved results that address the requirements for this application, that is, the error below 3.4% of full scale. During the spirometric tests, the system presented the measurement results of (305 ± 22, 450 ± 23, 603 ± 24, 751 ± 26, 922 ± 27, 1021 ± 30, 1182 ± 33, 1326 ± 36, 1476 ± 37, 1618 ± 45 and 1786 ± 56) × 10−6 m3 for reference values of (300, 450, 600, 750, 900, 1050, 1200, 1350, 1500, 1650 and 1800) × 10−6 m3, respectively. Therefore, considering the spirometry and pressure boundary conditions of the manikin lungs, the system achieves the objective of simulating valid spirometric data for debriefings, that is, there is an agreement between the measurement results when compared to the signal generated by a commercial spirometer (Koko brand). The main advantages that this work presents in relation to the sensors commonly used for this purpose are: (i) the reduced cost, which makes it possible, for the first time, to use a respiratory volume sensor in medical simulators or training dummies; (ii) the direct measurement of air entering the lung using a noninvasive method, which makes it possible to use spirometry parameters to characterize simulated human respiration during the CPR training; and (iii) the measurement of spirometric parameters (FVC, FEVt, and FEF20–75%), in real-time, during the CPR training, to achieve optimal ventilation performance. Therefore, the system developed in this work addresses the minimum requirements for the practice of ventilation in the CPR maneuvers and has great potential in several future applications.
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Affiliation(s)
- Rodolfo Rocha Vieira Leocádio
- Department of Control and Automation Engineering (DECAT), Escola de Minas, Universidade Federal de Ouro Preto (UFOP), Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil;
- Department of Pediatric and Adult Clinic (DECPA), Escola de Medicina, Universidade Federal de Ouro Preto (UFOP), Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil;
- Correspondence: ; Tel.: +55-31-98807-3747
| | - Alan Kardek Rêgo Segundo
- Department of Control and Automation Engineering (DECAT), Escola de Minas, Universidade Federal de Ouro Preto (UFOP), Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil;
| | - Cibelle Ferreira Louzada
- Department of Pediatric and Adult Clinic (DECPA), Escola de Medicina, Universidade Federal de Ouro Preto (UFOP), Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil;
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9
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Novoa Y Novoa VA, Sutton LF, Neis AE, Marroquin AM, Coleman TM, Praska KA, Freimund TA, Ruka KL, Warzala VL, Sangi-Haghpeykar H, Ruano R. Reproducibility of Liver-to-Thorax Area Ratio Ultrasound Measurements in Congenital Diaphragmatic Hernia. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2019; 38:1477-1482. [PMID: 30244491 DOI: 10.1002/jum.14826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVES The aim of this study was to investigate the reproducibility of a standardized method to assess the ultrasound liver-to-thoracic area ratio in fetuses with congenital diaphragmatic hernia. METHODS We selected 24 images of 9 fetuses diagnosed with left-sided at our institution between January 2010 and December 2017. Eight operators (1 maternal-fetal medicine specialist and 7 sonographers) reviewed the selected images and assessed the ultrasound liver-to-thoracic area ratio according to a standardized protocol. We evaluated the correlation between operators using the intraclass correlation coefficient and compared agreement between the sonographers and a physician with experience in measuring the ultrasound liver-to-thoracic area ratio using a Bland-Altman analysis. RESULTS Good intraoperator reproducibility was observed for the standardized ultrasound liver-to-thoracic area ratio (intraclass correlation coefficient, 0.78). Good agreement among sonographers and the physician was also observed for the standardized measurements (bias, 0.01; precision, 0.03; limits of agreement, -0.05 to + 0.07). CONCLUSIONS We demonstrated that good intraoperator and interoperator reproducibility of ultrasound liver-to-thoracic area ratio assessment is feasible after standardizing the method in our center.
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Affiliation(s)
- Victoria Arruga Novoa Y Novoa
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Laura F Sutton
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Allan E Neis
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Amber M Marroquin
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Tracey M Coleman
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Kathleen A Praska
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Tamara A Freimund
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Krystal L Ruka
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Vicki L Warzala
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Haleh Sangi-Haghpeykar
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, USA
| | - Rodrigo Ruano
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
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Sperling JD, Sparks TN, Berger VK, Farrell JA, Gosnell K, Keller RL, Norton ME, Gonzalez JM. Prenatal Diagnosis of Congenital Diaphragmatic Hernia: Does Laterality Predict Perinatal Outcomes? Am J Perinatol 2018; 35:919-924. [PMID: 29304545 PMCID: PMC6033692 DOI: 10.1055/s-0037-1617754] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The objective of this study was to examine laterality as a predictor of outcomes among fetuses with prenatally diagnosed congenital diaphragmatic hernia (CDH). METHODS This is a retrospective cohort study of pregnancies with CDH evaluated at our center from 2008 to 2016 compared cases with right-sided CDH (RCDH) versus left-sided CDH (LCDH). The primary outcome was survival to discharge. Secondary outcomes included ultrasound predictors of poor prognosis (liver herniation, stomach herniation, lung area-to-head circumference ratio [LHR]), concurrent anomalies, hydrops, stillbirth, preterm birth, mode of delivery, small for gestational age, use of extracorporeal membrane oxygenation, and length of stay. Terminations and stillbirths were excluded from analyses of neonatal outcomes. RESULTS In this study, 157 (83%) LCDH and 32 (17%) RCDH cases were identified. Survival to discharge was similar (64 vs. 66.4%, p = 0.49) with regard to laterality. RCDH had higher rates of liver herniation (90.6 vs. 72%, p = 0.03), hydrops fetalis (15.6 vs. 1.3%, p < 0.01), and lower LHR (0.87 vs. 0.99, p = 0.04). LCDH had higher rates of stomach herniation (69.4 vs. 12.5%, p < 0.01). Rates of other outcomes were similar in univariate analyses. Adjusting for microarray abnormalities, the odds for survival to discharge for RCDH compared with LCDH was 0.93 (0.38-2.30, p = 0.88). CONCLUSION Compared with LCDH, fetuses with RCDH had higher rates of adverse ultrasound predictors, but equivalent survival.
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Affiliation(s)
- Jeffrey D. Sperling
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California,Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Teresa N. Sparks
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California,Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Victoria K. Berger
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California,Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Jody A. Farrell
- Division of Pediatric Surgery, Department of Surgery, Fetal Treatment Center, University of California, San Francisco, San Francisco, California
| | - Kristen Gosnell
- Division of Pediatric Surgery, Department of Surgery, Fetal Treatment Center, University of California, San Francisco, San Francisco, California
| | - Roberta L. Keller
- Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Mary E. Norton
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California,Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Juan M. Gonzalez
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, California,Department of Pediatrics, University of California, San Francisco, San Francisco, California
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Abstract
Congenital Diaphragmatic Hernia (CDH) is defined by the presence of an orifice in the diaphragm, more often left and posterolateral that permits the herniation of abdominal contents into the thorax. The lungs are hypoplastic and have abnormal vessels that cause respiratory insufficiency and persistent pulmonary hypertension with high mortality. About one third of cases have cardiovascular malformations and lesser proportions have skeletal, neural, genitourinary, gastrointestinal or other defects. CDH can be a component of Pallister-Killian, Fryns, Ghersoni-Baruch, WAGR, Denys-Drash, Brachman-De Lange, Donnai-Barrow or Wolf-Hirschhorn syndromes. Some chromosomal anomalies involve CDH as well. The incidence is < 5 in 10,000 live-births. The etiology is unknown although clinical, genetic and experimental evidence points to disturbances in the retinoid-signaling pathway during organogenesis. Antenatal diagnosis is often made and this allows prenatal management (open correction of the hernia in the past and reversible fetoscopic tracheal obstruction nowadays) that may be indicated in cases with severe lung hypoplasia and grim prognosis. Treatment after birth requires all the refinements of critical care including extracorporeal membrane oxygenation prior to surgical correction. The best hospital series report 80% survival but it remains around 50% in population-based studies. Chronic respiratory tract disease, neurodevelopmental problems, neurosensorial hearing loss and gastroesophageal reflux are common problems in survivors. Much more research on several aspects of this severe condition is warranted.
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Lee TC, Lim FY, Keswani SG, Frischer JS, Haberman B, Kingma PS, Habli M, Jaekle RK, Sharp G, Kline-Fath B, Rubio EI, Calvo M, Guimaraes C, Crombleholme TM. Late gestation fetal magnetic resonance imaging-derived total lung volume predicts postnatal survival and need for extracorporeal membrane oxygenation support in isolated congenital diaphragmatic hernia. J Pediatr Surg 2011; 46:1165-71. [PMID: 21683216 PMCID: PMC3870885 DOI: 10.1016/j.jpedsurg.2011.03.046] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2011] [Accepted: 03/26/2011] [Indexed: 10/18/2022]
Abstract
PURPOSE Magnetic resonance imaging (MRI) has been used as an imaging modality to assess pulmonary hypoplasia in congenital diaphragmatic hernias (CDHs). The objective of this study was to determine if there is a correlation between late gestational fetal MRI-derived total lung volumes (TLVs) and CDH outcomes. METHODS From 2006 to 2009, 44 patients met criteria of an isolated CDH with a late gestational MRI evaluation. The prenatal TLV (in milliliters) was obtained between 32 and 34 weeks gestation. The measured study outcomes included survival, need for extracorporeal membrane oxygenation (ECMO), and length of stay. RESULTS There were 39 left and 5 right CDH patients. The average TLV was significantly lower for nonsurvivors (P = .01), and there was a significant association between lower TLV and the need for ECMO (P = .0001). When stratified by TLV, patients with a TLV of greater than 40 mL had a 90% survival vs 35% survival for a TLV of less than 20 mL. Furthermore, patients with a TLV greater than 40 mL had a lower rate of ECMO use (10%) than patients with a TLV of less than 20 mL (86%). Shorter length of stay was found to correlate with increasing TLV (P = .022). CONCLUSION Late gestation fetal MRI-derived TLV significantly correlates with postnatal survival and need for ECMO. Fetal MRI may be useful for the evaluation of patients who present late in gestation with a CDH.
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Affiliation(s)
- Timothy C. Lee
- The CDH Team, Division of Pediatric General, Thoracic and Fetal Surgery, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Foong Y. Lim
- The CDH Team, Division of Pediatric General, Thoracic and Fetal Surgery, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Sundeep G. Keswani
- The CDH Team, Division of Pediatric General, Thoracic and Fetal Surgery, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Jason S. Frischer
- The CDH Team, Division of Pediatric General, Thoracic and Fetal Surgery, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Beth Haberman
- Division of Neonatology, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Paul S. Kingma
- Division of Neonatology, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Mounira Habli
- Divisions of Maternal-Fetal Medicine, Good Samaritan Hospital and University Hospital, Cincinnati, OH 45229-3039, USA
| | - Ronald K. Jaekle
- Department of Obstetrics and Gynecology, University of Cincinnati, Cincinnati, OH 45229-3039, USA
| | - Gina Sharp
- The CDH Team, Division of Pediatric General, Thoracic and Fetal Surgery, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Beth Kline-Fath
- Division of Radiology, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Eva I. Rubio
- Division of Radiology, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Maria Calvo
- Division of Radiology, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Carolina Guimaraes
- Division of Radiology, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA
| | - Timothy M. Crombleholme
- The CDH Team, Division of Pediatric General, Thoracic and Fetal Surgery, Cincinnati Children's Hospital, Cincinnati, OH 45229-3039, USA,Corresponding author. The Fetal Care Center of Cincinnati, Division of Pediatric General, Thoracic, and Fetal Surgery, Cincinnati Children’s Hospital, Cincinnati, OH 45229-3039, USA. Tel.: +1 513 636 6259; fax: +1 513 636 5959. (T.M. Crombleholme)
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van den Hout L, Sluiter I, Gischler S, De Klein A, Rottier R, Ijsselstijn H, Reiss I, Tibboel D. Can we improve outcome of congenital diaphragmatic hernia? Pediatr Surg Int 2009; 25:733-43. [PMID: 19669650 PMCID: PMC2734260 DOI: 10.1007/s00383-009-2425-8] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This review gives an overview of the disease spectrum of congenital diaphragmatic hernia (CDH). Etiological factors, prenatal predictors of survival, new treatment strategies and long-term morbidity are described. Early recognition of problems and improvement of treatment strategies in CDH patients may increase survival and prevent secondary morbidity. Multidisciplinary healthcare is necessary to improve healthcare for CDH patients. Absence of international therapy guidelines, lack of evidence of many therapeutic modalities and the relative low number of CDH patients calls for cooperation between centers with an expertise in the treatment of CDH patients. The international CDH Euro-Consortium is an example of such a collaborative network, which enhances exchange of knowledge, future research and development of treatment protocols.
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Affiliation(s)
- L. van den Hout
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - I. Sluiter
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - S. Gischler
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - A. De Klein
- Department of Genetics, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - R. Rottier
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - H. Ijsselstijn
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - I. Reiss
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
| | - D. Tibboel
- Department of Paediatric Surgery, ErasmusMC-Sophia, Rotterdam, The Netherlands
- ErasmusMC-Sophia, Room SK-3284, P.O. Box 2060, 3000CB Rotterdam, The Netherlands
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Cannie MM, Jani JC, De Keyzer F, Allegaert K, Dymarkowski S, Deprest J. Evidence and Patterns in Lung Response after Fetal Tracheal Occlusion: Clinical Controlled Study. Radiology 2009; 252:526-33. [DOI: 10.1148/radiol.2522081955] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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Büsing KA, Kilian AK, Schaible T, Dinter DJ, Neff KW. MR lung volume in fetal congenital diaphragmatic hernia: logistic regression analysis--mortality and extracorporeal membrane oxygenation. Radiology 2008; 248:233-9. [PMID: 18566175 DOI: 10.1148/radiol.2481070934] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To prospectively assess the results of logistic regression analysis that were based on magnetic resonance (MR) image fetal lung volume (FLV) measurements to predict survival and the corresponding need for extracorporeal membrane oxygenation (ECMO) therapy in fetuses with congenital diaphragmatic hernia (CDH) before and after 30 weeks gestation. MATERIALS AND METHODS Written informed consent was obtained and the study was approved by the local research ethics committee. FLV was measured on MR images in 95 fetuses (52 female neonates, 43 male neonates) with CDH between 22 and 39 weeks gestation by using multiplanar T2-weighted half-Fourier acquired single-shot turbo spin-echo MR imaging. On the basis of logistic regression analysis results, mortality and the need for ECMO therapy were calculated for fetuses before and after 30 weeks gestation. RESULTS Overall, higher FLV was associated with improved survival (P < .001) and decreasing probability of need for ECMO therapy (P = .008). Survival at discharge was 29.2% in neonates with an FLV of 5 mL, compared with 99.7% in neonates with an FLV of 25 mL. The corresponding need for ECMO therapy was 56.1% in fetuses with an FLV of 5 mL and 8.7% in fetuses with an FLV of 40 mL. Prognostic power was considerably lower before 30 weeks gestation. CONCLUSION Beyond 30 weeks gestation, logistic regression analysis that is based on MR FLV measurements is useful to estimate neonatal survival rates and ECMO requirements. Prior to 30 weeks gestation, the method is not reliable and the FLV measurement should be repeated, particularly in fetuses with small lung volumes, before a decision is made about therapeutic options.
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Affiliation(s)
- Karen A Büsing
- Department of Clinical Radiology, University Hospital Mannheim, University of Heidelberg, Theodor Kutzer Ufer 1-3, 68167 Mannheim, Germany.
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Büsing KA, Kilian AK, Schaible T, Endler C, Schaffelder R, Neff KW. MR Relative Fetal Lung Volume in Congenital Diaphragmatic Hernia: Survival and Need for Extracorporeal Membrane Oxygenation. Radiology 2008; 248:240-6. [DOI: 10.1148/radiol.2481070952] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Predicting Neonatal Deaths and Pulmonary Hypoplasia in Isolated Congenital Diaphragmatic Hernia Using the Sonographic Fetal Lung Volume–Body Weight Ratio. AJR Am J Roentgenol 2008; 190:1216-9. [DOI: 10.2214/ajr.07.3078] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Cannie MM, Jani JC, Van Kerkhove F, Meerschaert J, De Keyzer F, Lewi L, Deprest JA, Dymarkowski S. Fetal Body Volume at MR Imaging to Quantify Total Fetal Lung Volume: Normal Ranges. Radiology 2008; 247:197-203. [DOI: 10.1148/radiol.2471070682] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Büsing KA, Kilian AK, Schaible T, Debus A, Weiss C, Neff KW. Reliability and Validity of MR Image Lung Volume Measurement in Fetuses with Congenital Diaphragmatic Hernia and in Vitro Lung Models. Radiology 2008; 246:553-61. [DOI: 10.1148/radiol.2462062166] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Prediction of Mortality and Need for Neonatal Extracorporeal Membrane Oxygenation in Fetuses with Congenital Diaphragmatic Hernia: Logistic Regression Analysis Based on MRI Fetal Lung Volume Measurements. AJR Am J Roentgenol 2007; 189:1307-11. [DOI: 10.2214/ajr.07.2434] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Gorincour G, Eurin D, Avni FE. Prenatal prediction of pulmonary hypoplasia: US and MR imaging working together. Radiology 2007; 245:608-9; author reply 609. [PMID: 17940315 DOI: 10.1148/radiol.2452062140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Jani JC, Cannie M, Peralta CFA, Deprest JA, Nicolaides KH, Dymarkowski S. Lung Volumes in Fetuses with Congenital Diaphragmatic Hernia: Comparison of 3D US and MR Imaging Assessments. Radiology 2007; 244:575-82. [PMID: 17641375 DOI: 10.1148/radiol.2442061158] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To prospectively compare three-dimensional (3D) ultrasonography (US) and magnetic resonance (MR) imaging in the assessment of lung volumes in fetuses with congenital diaphragmatic hernia. MATERIALS AND METHODS Informed consent was obtained for this ethics committee-approved study. Left and right lung volumes were measured by using the 30 degrees virtual organ computer-aided analysis 3D US technique and a transverse multiplanar T2-weighted MR imaging technique in 43 fetuses with isolated congenital diaphragmatic hernia. Regression analysis was used to determine the significance of the association between the two methods. RESULTS The 43 fetuses were assessed in a total of 78 examinations. Median gestational age at the examinations was 28 weeks (range, 18-38 weeks). In all examinations, it was possible to visualize and measure both the ipsilateral and the contralateral lungs with MR imaging. In contrast, with 3D US, the contralateral lung could be measured in all examinations, but the ipsilateral lung could be measured in only 44 (56%) examinations. For the contralateral lungs, there was a significant association between 3D US and MR imaging measurements (r = 0.86, P < .001). Although the mean lung volume measured with 3D US was 25% lower than that measured with MR imaging, the ratio of observed volume to expected normal mean volume for gestation was not significantly different between the two methods (3D US, 0.48; MR imaging, 0.52). In the 44 examinations in which the ipsilateral lung could be measured with both methods, 3D US volumes were not significantly different from MR imaging volumes, and the association was weaker (r = 0.39, P < .05) in the ipsilateral lungs than in the contralateral lungs. CONCLUSION For congenital diaphragmatic hernia, 3D US provides a reliable measurement of the contralateral but not the ipsilateral lung.
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Affiliation(s)
- Jacques C Jani
- Unit of Prenatal and Gynaecological Ultrasound and Fetal Therapy, Department of Obstetrics and Gynaecology, University Hospital Gasthuisberg, 3000 Leuven, Belgium
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Gaillot T, Ferry M, Beuchée A, Pladys P, Bétrémieux P. Magnetic resonance imaging measurement of fetal lung volume does not match postnatal survival. Arch Dis Child Fetal Neonatal Ed 2007; 92:F78. [PMID: 17185436 PMCID: PMC2675310 DOI: 10.1136/adc.2006.105957] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Cannie M, Jani JC, De Keyzer F, Devlieger R, Van Schoubroeck D, Witters I, Marchal G, Dymarkowski S, Deprest JA. Fetal Body Volume: Use at MR Imaging to Quantify Relative Lung Volume in Fetuses Suspected of Having Pulmonary Hypoplasia. Radiology 2006; 241:847-53. [PMID: 17053198 DOI: 10.1148/radiol.2413051228] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To retrospectively determine an algorithm based on fetal body volume (FBV) by using magnetic resonance (MR) imaging to calculate relative lung volume in fetuses with normally developed lungs and prospectively assess the use of this algorithm in predicting pulmonary hypoplasia in the late second and early third trimesters for fetuses at risk for pulmonary hypoplasia. MATERIALS AND METHODS Oral informed consent was obtained for the prospective component of this ethics committee-approved study. MR imaging lung volumetry was performed in 36 fetuses with normally developed lungs between 18 and 39 weeks gestational age by using T2-weighted single-shot fast spin-echo imaging in fetal transverse and sagittal planes. Findings were then correlated with biometric variables and gestational age. The best-performing algorithm was applied to 37 fetuses (between 18 and 29 weeks gestational age) at risk for pulmonary hypoplasia to determine observed-expected lung volume ratio. This group was stratified according to pregnancy management, and observed-expected ratios were correlated with outcome. In fetuses with isolated congenital diaphragmatic hernia (CDH) (n = 19), observed-expected ratio was correlated with lung-head ratio, neonatal survival in pregnancies managed expectantly (n = 13), and/or lung-body weight ratio at necropsy (n = 9). For that purpose, linear regression correlation was used with the Pearson correlation coefficient; P < .05 was considered to indicate a significant difference. RESULTS Total fetal lung volume correlated best with total FBV (r = 0.96, P < .05). Observed-expected ratio based on FBV correlated with lung-head ratio in patients with CDH (r = 0.71, P < .001) and with lung-body weight ratio at necropsy (r = 0.68, P < .05) and could be used to help predict neonatal survival. CONCLUSION FBV measured with MR imaging can be used as a single parameter in an algorithm and showed closest correlation with normal total fetal lung volume. In the transition from second to third trimester, this algorithm enabled calculation of the observed-expected ratio and prediction of outcome in fetuses at risk for pulmonary hypoplasia.
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Affiliation(s)
- Mieke Cannie
- Department of Radiology, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium
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Bonfils M, Emeriaud G, Durand C, Brancato S, Nugues F, Jouk PS, Wroblewski I, Debillon T. Fetal lung volume in congenital diaphragmatic hernia. Arch Dis Child Fetal Neonatal Ed 2006; 91:F363-4. [PMID: 16452105 PMCID: PMC2672842 DOI: 10.1136/adc.2005.079392] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In a retrospective study of 22 neonates with congenital diaphragmatic hernia, fetal lung volume (FLV) measured by magnetic resonance imaging was associated with survival; the best FLV ratio cut-off to predict mortality was 30% of expected FLV. This study supports a correlation between FLV and the chances of survival.
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Affiliation(s)
- M Bonfils
- Service de Réanimation Néonatale, CHU de Grenoble, BP 217, 38043 Grenoble Cedex 09, France
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Ward VL, Nishino M, Hatabu H, Estroff JA, Barnewolt CE, Feldman HA, Levine D. Fetal Lung Volume Measurements: Determination with MR Imaging—Effect of Various Factors. Radiology 2006; 240:187-93. [PMID: 16793978 DOI: 10.1148/radiol.2393050583] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To retrospectively determine the effect of gestational age (GA), imaging plane, section thickness, and inter- and intraobserver variability on fetal lung volume (FLV) measurements obtained with magnetic resonance (MR) imaging in a cohort of fetuses without thoracic abnormalities. MATERIALS AND METHODS Institutional review board approval was obtained. Informed consent for this retrospective cohort study was waived, and the conduct of this study was HIPAA compliant. FLV was measured in 30 fetuses (GA, 17-36 weeks) referred for MR imaging for indications other than pulmonary abnormalities. Measurements were made on single-shot fast spin-echo images by tracing free-form regions of interest on individual consecutive sections in the transverse, sagittal, and coronal planes. Measurements were performed twice by two observers independently. Correlations between FLV and GA, imaging plane, and section thickness were assessed, as were intra- and interobserver variability. Time to perform FLV was assessed in a subset of fetuses. RESULTS Total FLV ranged from 2 to 110 mL. Mixed-effects regression model showed significant quadratic trend in FLV with increasing GA, with comparable strength of correlation (r = 0.89-0.91) in the three imaging planes of measurement. Intraobserver agreement was good in all three planes (r = 0.65-0.83) and was highest in the transverse plane. Interobserver agreement was good in all three planes (r = 0.68-0.76). FLV showed no significant dependence on section thickness (P = .23) or imaging plane (P = .82). Mean time to obtain FLV measurements ranged from 48 seconds at GA of 21 weeks to 77 seconds at GA of 29-30 weeks. CONCLUSION GA-based FLV measurements obtained with MR images are independent of section thickness and imaging plane and can be performed with good inter- and intraobserver agreement in less than 2 minutes.
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Affiliation(s)
- Valerie L Ward
- Department of Radiology, Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA 02115, USA.
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Jani J, Keller RL, Benachi A, Nicolaides KH, Favre R, Gratacos E, Laudy J, Eisenberg V, Eggink A, Vaast P, Deprest J. Prenatal prediction of survival in isolated left-sided diaphragmatic hernia. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2006; 27:18-22. [PMID: 16374756 DOI: 10.1002/uog.2688] [Citation(s) in RCA: 143] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
OBJECTIVE To investigate the potential value of antenatally determined intrathoracic herniation of the liver and the ratio of fetal lung area to head circumference (LHR) in the prediction of postnatal survival in isolated, left-sided congenital diaphragmatic hernia (CDH). METHODS In this multicenter study, we searched the antenatal-CDH-Registry for fetuses with isolated left-sided CDH that were liveborn after 30 weeks of gestation and were followed up postnatally for at least 3 months after discharge from hospital. The patients were subdivided into those with and those without intrathoracic herniation of the liver and into subgroups according to the LHR that had been measured between 22 + 0 and 28 + 0 weeks of gestation. The rate of survival in each group and subgroup of patients was determined and compared. RESULTS The registry search identified 184 patients that fulfilled the entry criteria. Logistic regression analysis demonstrated that significant predictors of survival were the presence or absence of intrathoracic herniation of the liver and the LHR. In 86 cases there was liver herniation (Group A) and in 98 the liver was confined to the abdomen (Group B). In Group A, the survival rate was 50.0% and was significantly associated with LHR; in Group B the survival rate was 76.5% and was unrelated to LHR. CONCLUSION In isolated, left-sided CDH, the postnatal mortality rate is substantially higher if there is intrathoracic herniation of the liver. In fetuses with liver herniation, measurement of LHR at 22-28 weeks of gestation is useful in the prediction of subsequent survival.
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Affiliation(s)
- J Jani
- Fetal Medicine and Treatment Units of the University Hospital Gasthuisberg, Leuven, Belgium
| | - R L Keller
- Fetal Medicine and Treatment Units of the University of California at San Francisco, San Francisco, CA, USA
| | - A Benachi
- Fetal Medicine and Treatment Units of the Hôpital Necker-Enfants Malades, Paris, France
| | - K H Nicolaides
- Fetal Medicine and Treatment Units of the King's College Hospital, London, UK
| | - R Favre
- Fetal Medicine and Treatment Units of the CMCO de Schiltigheim, Strasbourg, France
| | - E Gratacos
- Fetal Medicine and Treatment Units of the Vall d'Hebron Hospital, Barcelona, Spain
| | - J Laudy
- Fetal Medicine and Treatment Units of the Erasmus Medical Center, Rotterdam, The Netherlands
| | - V Eisenberg
- Fetal Medicine and Treatment Units of the Sheba Medical Center, Tel Hashomer, Israel
| | - A Eggink
- Fetal Medicine and Treatment Units of the UMC Sint Radboud, Nijmegen, The Netherlands
| | - P Vaast
- Fetal Medicine and Treatment Units of the Hôpital Jeanne de Flandre, CHRU Lille, France
| | - J Deprest
- Fetal Medicine and Treatment Units of the University Hospital Gasthuisberg, Leuven, Belgium
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Brewerton LJ, Chari RS, Liang Y, Bhargava R. Fetal Lung-to-Liver Signal Intensity Ratio at MR Imaging: Development of a Normal Scale and Possible Role in Predicting Pulmonary Hypoplasia in Utero. Radiology 2005; 235:1005-10. [PMID: 15845789 DOI: 10.1148/radiol.2353040280] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To define retrospectively a normal range for lung-to-liver signal intensity ratio (LLSIR) in fetuses of 16-40 weeks gestation by using half-Fourier single-shot turbo spin-echo magnetic resonance (MR) imaging. MATERIALS AND METHODS Approval from the regional ethics review board for retrospective evaluation was obtained, and informed consent was waived. Retrospective analysis and follow-up of 157 pregnant women who underwent MR imaging over the past 4 years were performed. Seventy-four fetuses were subsequently identified as having clinically normal lung function or normal lung morphologic features at autopsy. A total of 141 normal lungs were analyzed, and the LLSIR was calculated from images on an MR workstation. A mixed-effects statistical model was applied, and 95% prediction intervals were calculated. Ten fetuses with hypoplastic lungs at autopsy were also evaluated. RESULTS Plotting LLSIR against gestational age demonstrated that, according to the fitted mean curve, the signal intensity ratio was higher with more advanced gestational age. Statistical modeling suggests a quadratic relationship between gestational age and LLSIR. For fetuses in the normal population, the LLSIR ranged from 1.52 at 21 weeks gestation to 4.31 at 34 weeks gestation. For all hypoplastic lungs in fetuses at or beyond 25 weeks gestation, the LLSIR was outside the lower bound of the 95% prediction interval for the normal population. The distinction between hypoplastic lungs and normal lungs at less than 25 weeks gestation is less definitive. CONCLUSION This study provides a normal scale with a 95% prediction interval for LLSIR.
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Affiliation(s)
- Lee J Brewerton
- University of Alberta Medical School, Edmonton, Alberta, Canada
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Williams G, Coakley FV, Qayyum A, Farmer DL, Joe BN, Filly RA. Fetal Relative Lung Volume: Quantification by Using Prenatal MR Imaging Lung Volumetry. Radiology 2004; 233:457-62. [PMID: 15459321 DOI: 10.1148/radiol.2332031566] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To retrospectively determine a biometric algorithm for calculating relative lung volume in fetuses with normal lungs and of a wide range of gestational ages by using proved independent variables and to retrospectively investigate the use of this algorithm in fetuses with pulmonary hypoplasia. MATERIALS AND METHODS Total lung volume (TLV) was measured by using planimetry on single-shot rapid acquisition with relaxation enhancement magnetic resonance (MR) images obtained in 91 fetuses with ultrasonographically (US) normal chests and 28 fetuses with US-determined pulmonary hypoplasia. All fetuses were aged between 18 and 38 weeks gestation. Analysis of covariance was used to identify parameters that were not different between the fetuses with US-determined normal and those with US-determined abnormal chests, and these variables were used to construct an algorithm for calculating predicted lung volume. The relative lung volume-that is, the observed lung volume expressed as a percentage of the predicted lung volume-was then calculated in fetuses with pulmonary hypoplasia. RESULTS There was no significant difference in mean maternal or gestational age between the two fetus groups. Stepwise regression analysis was used to generate the following equation for predicting fetal lung volume on the basis of independent biometric indexes, with a correlation coefficient of 0.93: TLV = (0.52 . LV) + (0.33 . BD) - (0.06 . FL) - 13.7, with TLV and liver volume (LV) in milliliters and biparietal diameter (BD) and femoral length (FL) in centimeters. In the fetuses with normal chests, relative lung volume varied between 51% and 134%. In the fetuses with pulmonary hypoplasia, relative lung volume varied between 6% and 70%. CONCLUSION The predicted lung volume in fetuses of a wide range of gestational ages can be calculated with a high degree of accuracy, enabling prenatal MR imaging lung volumetry in which relative lung volume is used to quantify fetal pulmonary hypoplasia.
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Affiliation(s)
- Gethin Williams
- Department of Radiology, University of California San Francisco, 505 Parnassus Ave, Box 0628, San Francisco, CA 94143-0628, USA
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Tanigaki S, Miyakoshi K, Tanaka M, Hattori Y, Matsumoto T, Ueno K, Uehara K, Nishimura O, Minegishi K, Ishimoto H, Shinmoto H, Ikeda K, Yoshimura Y. Pulmonary Hypoplasia: Prediction with Use of Ratio of MR Imaging–measured Fetal Lung Volume to US-estimated Fetal Body Weight. Radiology 2004; 232:767-72. [PMID: 15333796 DOI: 10.1148/radiol.2323030359] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To determine the ratio of fetal lung volume (FLV) to fetal body weight (FBW) by using ultrasonography (US) and magnetic resonance (MR) imaging and to evaluate the usefulness of this ratio in predicting pulmonary hypoplasia (PH) in fetuses at high risk. MATERIALS AND METHODS MR imaging lung volumetry and US biometry were performed in 90 fetuses at 25-39 weeks gestation. In the control group of 73 fetuses, normal lung development was confirmed at neonatal follow-up and the normative ratio of MR imaging-measured FLV to US-estimated FBW (FLV/FBW) was determined. The high-risk group included 17 fetuses at risk for PH. The FLV/FBW was compared between the control and high-risk groups and with US parameters for predicting the development of PH in the high-risk group. Measurements 2 or more standard deviations below the mean control group measurement were considered abnormal. Comparisons of the FLV/FBW between groups were made by using the Student t test. The association between development of PH and measurement of each parameter was analyzed by using the Fisher exact probability test. RESULTS In the control group, the FLV/FBW decreased with gestational age during the third trimester and had a normal distribution (mean ratio, 0.028 mL/g; range, 0.015-0.444 mL/g). The mean FLV/FBW for the nine fetuses with PH (0.012 mL/g +/- 0.008) was significantly lower (P <.001) than that for the control group (0.028 mL/g +/- 0.007). Fetuses with abnormal FLV/FBW values were at significantly greater risk (P <.05) for PH development. Abnormal FLV/FBW values had higher diagnostic accuracy than abnormal US parameters. Sensitivity of the FLV/FBW was 89% (eight of nine fetuses); specificity, 88% (seven of eight fetuses); positive predictive value, 89% (eight of nine fetuses); negative predictive value, 88% (seven of eight fetuses); and accuracy, 88% (15 of 17 fetuses). CONCLUSION The FLV/FBW reflects the adequacy of intrauterine lung growth and can help predict PH.
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Affiliation(s)
- Shinji Tanigaki
- Dept of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo, Japan
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Frates MC, Kumar AJ, Benson CB, Ward VL, Tempany CM. Fetal Anomalies: Comparison of MR Imaging and US for Diagnosis. Radiology 2004; 232:398-404. [PMID: 15286310 DOI: 10.1148/radiol.2322030504] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To compare prenatal ultrasonography (US) and magnetic resonance (MR) imaging for the diagnosis of fetal anomalies. MATERIALS AND METHODS Images of 27 fetuses (28 diagnostic cases) with anomalies diagnosed at US were evaluated; in these fetuses, prenatal MR imaging was performed within 15 days of US. Prenatal US and MR imaging findings were compared with postnatal diagnoses. Postnatal evaluation included US, MR imaging, autopsy, surgery, voiding cystourethrography, computed tomography, angiography, and physical examination. RESULTS In seven diagnostic cases, US and MR imaging findings were in complete agreement with postnatal diagnoses. MR imaging correctly provided additional information to the US-determined diagnosis in another seven and correctly changed the US diagnosis in three. The MR imaging-determined diagnosis was incorrect and the US diagnosis was correct in four cases. In seven cases, the diagnoses at both US and MR imaging were incorrect when correlated with the postnatal outcome. MR imaging was most valuable in the assessment of anomalies of the central nervous system. CONCLUSION MR imaging may have a place as an adjunct to US in evaluation of fetal anomalies, particularly those involving the central nervous system.
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Affiliation(s)
- Mary C Frates
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115, USA.
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Ruano R, Benachi A, Joubin L, Aubry MC, Thalabard JC, Dumez Y, Dommergues M. Three-dimensional ultrasonographic assessment of fetal lung volume as prognostic factor in isolated congenital diaphragmatic hernia. BJOG 2004; 111:423-9. [PMID: 15104604 DOI: 10.1111/j.1471-0528.2004.00100.x] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the potential of three-dimensional ultrasound to predict outcome in congenital diaphragmatic hernia. DESIGN Prospective observational study. SETTING Tertiary care centre. POPULATION Twelve cases of isolated congenital diaphragmatic hernia (11 left-sided, 1 right-sided) and 109 controls. METHODS Fetal lung volume was assessed by three-dimensional ultrasound using the technique of rotation of the multiplanar imaging. In the control fetuses, a logistic transformation was performed to correlate fetal lung volume with gestational age, and the confidence interval was obtained with a bootstrap resampling. A mathematical equation was then obtained allowing calculation of the expected fetal lung volume as a function of gestational age. In fetuses with congenital diaphragmatic hernia, the observed/expected lung volume ratio was compared with postnatal outcome. MAIN OUTCOME MEASURES Neonatal mortality and pulmonary hypoplasia, which was defined as lung/body weight ratios less than 0.012. RESULTS The expected fetal lung volume was derived from the mathematical equation: Fetal lung volume (mL) = exp (4.72/(1 + exp ((20.32 - gestational age in weeks)/6.05))). The observed/expected fetal lung volume ratio was significantly lower in the congenital diaphragmatic hernia group (median: 0.34, range: 0.16-0.66), than in the control group (median: 1.02, range: 0.62-1.97, P < 0.0001). The distribution of this ratio was significantly downshifted in the infants with congenital diaphragmatic hernia who died (median: 0.19, range: 0.18-0.66) compared with survivors (median: 0.44, range: 0.36-0.66, P= 0.04). The observed/expected fetal lung volume ratio was also correlated with the postmortem lung/body weight ratio. CONCLUSION In isolated congenital diaphragmatic hernia, fetal lung volume measurement by three-dimensional ultrasound is a potential predictor for pulmonary hypoplasia and postnatal outcome.
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Affiliation(s)
- Rodrigo Ruano
- Maternité, Hôpital Necker-Enfants Malades, Université Paris V et AP-HP, France
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Ruano R, Benachi A, Martinovic J, Grebille AG, Aubry MC, Dumez Y, Dommergues M. Can Three-Dimensional Ultrasound Be Used for the Assessment of the Fetal Lung Volume in Cases of Congenital Diaphragmatic Hernia? Fetal Diagn Ther 2003; 19:87-91. [PMID: 14646426 DOI: 10.1159/000074268] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2002] [Accepted: 02/10/2003] [Indexed: 11/19/2022]
Abstract
We report on 2 fetuses with congenital diaphragmatic hernia (CDH) in whom the fetal lung volumes were estimated by three-dimensional ultrasound and the results compared with the postmortem lung volume measurements. Both examiners (sonographer and pathologist) were blinded to each other's results. The 1st case was a right CDH diagnosed at 20 weeks of gestation. The 2nd case was a left CDH diagnosed at 22 weeks of gestation. Both pregnancies were terminated upon request of the parents. Three-dimensional ultrasound estimation of the fetal lung volume was performed 1 day before termination of pregnancy using the technique of rotation of the three perpendicular planes. The left and right lung volumes estimated by three-dimensional ultrasound were 3.88 and 1.87 cm(3), respectively, in the 1st case and 0 and 5.52 cm(3), respectively, in the 2nd case. On postmortem examination, the left and right lung volumes were 3.0 and 2.2 cm(3), respectively, in case 1 and 1.1 and 5.6 cm(3), respectively, in case 2. This suggests that a three-dimensional estimation of pulmonary volumes may be correlated with postmortem findings in cases with CDH.
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Affiliation(s)
- Rodrigo Ruano
- Maternité, Hôpital Necker-Enfants Malades, Université Paris V et AP-HP, Paris, France
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