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Kim KM, Moon CH, Lee WJ, Kim WJ, Kim M, Jeong J, Lee HB, Jeong SM, Choi HJ, Hwang TS, Lee HC, Yu JH, Nam A, Kim DH. Surgical Correction of a Sinus Venosus Atrial Septal Defect with Partial Anomalous Pulmonary Venous Connections Using Cardiac Computed Tomography Imaging and a 3D-Printed Model. Animals (Basel) 2024; 14:1094. [PMID: 38612332 PMCID: PMC11010815 DOI: 10.3390/ani14071094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Sinus venosus atrial septal defects (SVASDs), concurrent with partial anomalous pulmonary venous connections (PAPVCs), are a rare congenital heart disease in dogs. Surgical correction is essential when clinical signs or significant hemodynamic changes are present. We aimed to report on the successful surgical correction of an SVASD with PAPVCs, using a computed tomography (CT)-based customized 3D cardiac model. A 10-month-old male poodle was referred for corrective surgery for an ASD. Echocardiography confirmed a hemodynamically significant left-to-right shunting flow through an interatrial septal defect and severe right-sided heart volume overload. For a comprehensive diagnosis, a CT scan was performed, which confirmed an SVASD with PAPVCs. A customized 3D cardiac model was used for preoperative decision-making and surgical rehearsal. The defect was repaired using an autologous pericardial patch under a cardiopulmonary bypass (CPB). Temporary pacing was applied for sinus bradycardia and third-degree atrioventricular block. The patient recovered from the anesthesia without further complications. The pacemaker was removed during hospitalization and the patient was discharged without complications 2 weeks post-surgery. At the three-month follow-up, there was no shunting flow in the interatrial septum and the right-sided volume overload had been resolved. The cardiac medications were discontinued, and there were no complications. This report indicates the validity of surgical correction under CPB for an SVASD with PAPVCs, and the advantages of utilizing a CT-based 3D cardiac model for preoperative planning to increase the surgical success rate.
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Affiliation(s)
- Kyung-Min Kim
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Chang-Hwan Moon
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Won-Jong Lee
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Woo-Jin Kim
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Mihyung Kim
- Chungnam National University Sejong Hospital, 20 Bodeum 7-ro, Sejong-si 30099, Republic of Korea;
| | - Jaemin Jeong
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Hae-Beom Lee
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Seong-Mok Jeong
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
| | - Ho-Jung Choi
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea;
| | - Tae Sung Hwang
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju-daero, Jinju-si 52828, Republic of Korea; (T.S.H.); (H.C.L.)
| | - Hee Chun Lee
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju-daero, Jinju-si 52828, Republic of Korea; (T.S.H.); (H.C.L.)
| | - Jae Hyeon Yu
- Department of Cardiothoracic Surgery, Chungnam National University Hospital, College of Medicine, Chungnam National University, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Republic of Korea;
| | - Aryung Nam
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Dae-Hyun Kim
- Department of Veterinary Surgery, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea; (K.-M.K.); (C.-H.M.); (W.-J.L.); (W.-J.K.); (J.J.); (H.-B.L.); (S.-M.J.)
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Yoshiura T, Masuda T, Tahara M, Kobayashi Y, Kikuhara Y, Ishibashi T, Nonaka H, Oku T, Sato T, Funama Y. Cardiac computed tomography angiography with and without bolus tracking methods in infants with congenital heart disease. RADIATION PROTECTION DOSIMETRY 2024; 200:251-258. [PMID: 38088430 DOI: 10.1093/rpd/ncad295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 10/12/2023] [Accepted: 11/15/2023] [Indexed: 03/05/2024]
Abstract
The study investigated radiation dose, vascular computed tomography (CT) enhancement and image quality of cardiac computed tomography angiography (CCTA) with and without bolus tracking (BT) methods in infants with congenital heart disease (CHD). The volume CT dose index (CTDIvol) and dose length product (DLP) were recorded for all CT scans, and the effective dose was obtained using a conversion factors. The CT number for the ascending aorta (AO) and pulmonary artery (PA), image noise of muscle tissue and contrast-to-noise ratio (CNR) were measured and calculated. The median values in the groups with and without BT were 2.20 mGy versus 0.44 mGy for CTDIvol, 8.10 mGy·cm versus 6.20 mGy·cm for DLP, and 0.66 mSv versus 0.51 mSv for effective dose (p < 0.001). There were no statistical differences in vascular CT enhancement, image noise, and CNR. CCTA without BT methods can reduce the radiation dose while maintaining vascular CT enhancement and image quality compared to CCTA with BT methods.
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Affiliation(s)
- Takayuki Yoshiura
- Graduate School of Health Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, 862-0976, Japan
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Takanori Masuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288 Matsushima, Kurashiki-City, Okayama, 701-0193, Japan
| | - Masahiro Tahara
- Hiroshima Central Street Children's Clinic, 7-1 Mikawa-cho, Hiroshima, 730-0029, Japan
| | - Yukie Kobayashi
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Yukari Kikuhara
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Toru Ishibashi
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Haruki Nonaka
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Takayuki Oku
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Tomoyasu Sato
- Department of Medical Technology, Tsuchiya General Hospital, 3-30 Nakajima-cho, Hiroshima, 730-8655, Japan
| | - Yoshinori Funama
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Kumamoto, 862-0976, Japan
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Skaff AM, Valikodath NG, Godown J, Parra DA. "In-patient echocardiography utilization post repair of congenital heart disease. Analysis of data from the Pediatric Health Information System from 2010 to 2019". Cardiol Young 2024:1-6. [PMID: 38163984 DOI: 10.1017/s1047951123004407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
BACKGROUND Echocardiography is a key diagnostic tool for medical decision-making following congenital heart surgery. Overall utilisation of echocardiography for specific congenital heart lesions following cardiac surgery has not previously been reported. This study aims to assess echocardiogram utilisation following the surgical repair of CHD to describe the variation in use across centres and provide clinical benchmarks. METHODS All patients < 18 years of age undergoing surgical repair of CHD were identified from the Pediatric Health Information System from 2010 to 2019. Surgeries were grouped based on their Risk Adjustment for Congenital Heart Surgery-1 scores. Detailed billing data were used to assess the frequency/cost of post-operative echocardiograms, phase of hospital care, and hospital length of stay. RESULTS In total, 37,238 surgical encounters were identified for inclusion across 48 centres. Higher Risk Adjustment for Congenital Heart Surgery scores were associated with an increased median number of post-operative echocardiograms (2 versus 4 in Risk Adjustment for Congenital Heart Surgery score 1 versus 6, p < 0.001), and longer median post-operative length of stay (3 days versus 31 days in Risk Adjustment for Congenital Heart Surgery score 1 versus 6, p < 0.001). After accounting for surgical complexity, there was significant variability in echocardiogram utilisation across centres (median daily echocardiogram utilisation range 0.2/day-0.6/day, p < 0.001). There is no difference in the proportion of patients with high surgical complexity (Risk Adjustment for Congenital Heart Surgery ≥ 4) between centres with high versus low echocardiogram utilisation (p = 0.44). CONCLUSIONS Increasing surgical complexity is associated with longer post-operative length of stay and increased utilisation of echocardiography. There is wide variability in echocardiography resource utilisation across centres, even when accounting for surgical complexity.
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Affiliation(s)
- Adam M Skaff
- Department of Pediatrics, Division of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nishma G Valikodath
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Justin Godown
- Department of Pediatrics, Division of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - David A Parra
- Department of Pediatrics, Division of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
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Afroz S, Østerås BH, Thevathas US, Dohlen G, Stokke C, Robsahm TE, Olerud HM. Use of ionizing radiation in a Norwegian cohort of children with congenital heart disease: imaging frequency and radiation dose for the Health Effects of Cardiac Fluoroscopy and Modern Radiotherapy in Pediatrics (HARMONIC) study. Pediatr Radiol 2023; 53:2502-2514. [PMID: 37773444 PMCID: PMC10635954 DOI: 10.1007/s00247-023-05774-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND The European-funded Health Effects of Cardiac Fluoroscopy and Modern Radiotherapy in Pediatrics (HARMONIC) project is a multicenter cohort study assessing the long-term effects of ionizing radiation in patients with congenital heart disease. Knowledge is lacking regarding the use of ionizing radiation from sources other than cardiac catheterization in this cohort. OBJECTIVE This study aims to assess imaging frequency and radiation dose (excluding cardiac catheterization) to patients from a single center participating in the Norwegian HARMONIC project. MATERIALS AND METHODS Between 2000 and 2020, we recruited 3,609 patients treated for congenital heart disease (age < 18 years), with 33,768 examinations categorized by modality and body region. Data were retrieved from the radiology information system. Effective doses were estimated using International Commission on Radiological Protection Publication 60 conversion factors, and the analysis was stratified into six age categories: newborn; 1 year, 5 years, 10 years, 15 years, and late adolescence. RESULTS The examination distribution was as follows: 91.0% conventional radiography, 4.0% computed tomography (CT), 3.6% diagnostic fluoroscopy, 1.2% nuclear medicine, and 0.3% noncardiac intervention. In the newborn to 15 years age categories, 4-12% had ≥ ten conventional radiography studies, 1-8% underwent CT, and 0.3-2.5% received nuclear medicine examinations. The median effective dose ranged from 0.008-0.02 mSv and from 0.76-3.47 mSv for thoracic conventional radiography and thoracic CT, respectively. The total effective dose burden from thoracic conventional radiography ranged between 28-65% of the dose burden from thoracic CT in various age categories (40% for all ages combined). The median effective dose for nuclear medicine lung perfusion was 0.6-0.86 mSv and for gastrointestinal fluoroscopy 0.17-0.27 mSv. Because of their low frequency, these procedures contributed less to the total effective dose than thoracic radiography. CONCLUSION This study shows that CT made the largest contribution to the radiation dose from imaging (excluding cardiac intervention). However, although the dose per conventional radiograph was low, the large number of examinations resulted in a substantial total effective dose. Therefore, it is important to consider the frequency of conventional radiography while calculating cumulative dose for individuals. The findings of this study will help the HARMONIC project to improve risk assessment by minimizing the uncertainty associated with cumulative dose calculations.
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Affiliation(s)
- Susmita Afroz
- Department of Optometry, Radiography and Lighting Design, University of South-Eastern Norway, Grønland 58, Drammen, Norway.
- Department of Pediatric Cardiology, Oslo University Hospital, Oslo, Norway.
| | - Bjørn H Østerås
- Department of Physics and Computational Radiology, Oslo University Hospital, Oslo, Norway
| | - Utheya S Thevathas
- Department of Optometry, Radiography and Lighting Design, University of South-Eastern Norway, Grønland 58, Drammen, Norway
- Department of Pediatric Cardiology, Oslo University Hospital, Oslo, Norway
| | - Gaute Dohlen
- Department of Pediatric Cardiology, Oslo University Hospital, Oslo, Norway
| | - Caroline Stokke
- Department of Physics and Computational Radiology, Oslo University Hospital, Oslo, Norway
- Department of Physics, University of Oslo, Oslo, Norway
| | - Trude E Robsahm
- Research Department, Cancer Registry of Norway, Oslo, Norway
| | - Hilde M Olerud
- Department of Optometry, Radiography and Lighting Design, University of South-Eastern Norway, Grønland 58, Drammen, Norway
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Ghorbannia A, Spearman AD, Sawalhi S, Woods RK, Maadooliat M, LaDisa JF. Consistency of the continuous flow pressure gradient despite aortic arch anomalies co-existing with coarctation. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.10.30.23297763. [PMID: 37961134 PMCID: PMC10635219 DOI: 10.1101/2023.10.30.23297763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Aims Severity assessment for coarctation of the aorta (CoA) is challenging due to concomitant morphological anomalies (complex CoA) and inaccurate Doppler-based indices. Promising diagnostic performance has been reported for the continuous flow pressure gradient (CFPG), but it has not been studied in complex CoA. Our objective was to characterize the effect of complex CoA and associated hemodynamics on CFPG in a clinical cohort. Methods and Results Retrospective analysis identified discrete juxtaductal (n=25) and complex CoA (n=43; transverse arch and/or isthmus hypoplasia) patients with arm-leg systolic blood pressure gradients (BPG) within 24 hours of echocardiography for comparison to BPG by conventional Doppler indices (simplified Bernoulli equation and modified forms correcting for proximal kinetic energy and/or recovered pressure). Results were interpreted using the current CoA guideline (BPG ≥20 mmHg) to compare diagnostic performance indicators including receiver operating characteristic curves, sensitivity, specificity, and diagnostic accuracy, among others. Echocardiography Z-scored aortic diameters were applied with computational stimulations from a preclinical CoA model to understand aspects of the CFPG driving performance differences.Diagnostic performance was substantially reduced from discrete to complex CoA for conventional Doppler indices calculated from patient data, and by hypoplasia and/or long segment stenosis in simulations. In contrast, diagnostic indicators for the CFPG only modestly dropped for complex vs discrete CoA. Simulations revealed differences in performance due to inclusion of the Doppler velocity index and diastolic pressure half-time in the CFPG calculation. Conclusion CFPG is less affected by aortic arch anomalies co-existing with CoA when compared to conventional Doppler indices.
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Affiliation(s)
- Arash Ghorbannia
- Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Pediatrics - Division of Cardiology, Herma Heart Institute, Children’s Wisconsin and the Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Andrew D. Spearman
- Department of Pediatrics - Division of Cardiology, Herma Heart Institute, Children’s Wisconsin and the Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Shahd Sawalhi
- Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Ronald K. Woods
- Division of Pediatric Cardiothoracic Surgery, Department of Surgery, Medical College of Wisconsin, Herma Heart Institute, Children’s Wisconsin, Milwaukee, Wisconsin, USA
| | - Mehdi Maadooliat
- Department of Mathematical and Statistical Sciences, Marquette University, Milwaukee, Wisconsin, USA
| | - John F. LaDisa
- Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Department of Pediatrics - Division of Cardiology, Herma Heart Institute, Children’s Wisconsin and the Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Departments of Physiology, and Medicine - Division of Cardiovascular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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Ghorbannia A, Ellepola CD, Woods RK, Ibrahim ESH, Maadooliat M, Ramirez HM, LaDisa JF. Clinical, Experimental, and Computational Validation of a New Doppler-Based Index for Coarctation Severity Assessment. J Am Soc Echocardiogr 2022; 35:1311-1321. [PMID: 36122791 PMCID: PMC9729418 DOI: 10.1016/j.echo.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 08/15/2022] [Accepted: 09/11/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Long-term morbidity including hypertension often persists in coarctation patients despite current guidelines. Coarctation severity can be invasively assessed via peak-to-peak catheter pressure gradient (PPCG), which is estimated noninvasively via simplified Bernoulli equation and conventionally reported as peak instantaneous Doppler gradient (PIDG). However, underlying simplifications of the equation limit diagnostic accuracy. We studied the diagnostic performance of a new Doppler-based diastolic index called the continuous flow pressure gradient (CFPG) versus conventional indices in assessing coarctation severity. METHODS In a rabbit model mimicking human aortic coarctation, temporal blood pressure waveforms revealed the diastolic instantaneous pressure gradients and spectral Doppler features impacted by coarctation severity. We therefore hypothesized that CFPG provides superior correlation with coarctation gradients measured invasively. PIDG and CFPG were quantified using color flow echocardiography in humans and rabbits with discrete coarctations. Results were compared with PPCG in rabbits (n = 34) and arm-leg systolic gradients (n = 25) in humans via 1-way analysis of variance, Pearson's correlation, linear regression, and Bland-Altman analysis. RESULTS A threshold of CFPG ≥ 4.6 mm Hg was identified via the Youden index as representative of PPCG ≥ 20 mm Hg (the current guideline value for coarctation intervention) in rabbits, while a CFPG ≥1.0 mm Hg represented an arm-leg systolic gradient ≥20 mm Hg in humans. Accuracy measures revealed superior correlation of CFPG (R2 > 0.80) and mild receiver operating characteristic improvement (area under the receiver operating characteristic curve, 0.94-0.95) compared with PIDG (R2 < 0.63; area under the receiver operating characteristic curve, 0.89-0.95). Inter-/intraobserver variability tested by intraclass correlation coefficient revealed measurement reliability with differences ≤8.2% and 10.7%, respectively. Computational simulations of anesthetized versus conscious hemodynamics showed parameters were minimally impacted by isoflurane inherent in the data used to derive CFPG. These results confirm the potential diagnostic accuracy of CFPG in echocardiography-based coarctation severity assessment. We are optimistic that CFPG will be useful for translation of results from preclinical studies that revisit current guidelines to limit morbidity in humans with aortic coarctation.
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Affiliation(s)
- Arash Ghorbannia
- Department of Biomedical Engineering, Medical College of Wisconsin, and Marquette University, Milwaukee, Wisconsin; Division of Pediatric Cardiology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin.
| | - Chalani D Ellepola
- Division of Pediatric Cardiology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ronald K Woods
- Division of Pediatric Cardiothoracic Surgery, Department of Surgery, Medical College of Wisconsin, Herma Heart Institute, Children's Wisconsin, Milwaukee, Wisconsin
| | - El-Sayed H Ibrahim
- Department of Biomedical Engineering, Medical College of Wisconsin, and Marquette University, Milwaukee, Wisconsin; Department of Radiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Mehdi Maadooliat
- Department of Mathematics and Statistical Sciences, Marquette University, Milwaukee, Wisconsin
| | - Hilda Martinez Ramirez
- Department of Biomedical Engineering, Medical College of Wisconsin, and Marquette University, Milwaukee, Wisconsin
| | - John F LaDisa
- Department of Biomedical Engineering, Medical College of Wisconsin, and Marquette University, Milwaukee, Wisconsin; Division of Pediatric Cardiology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin; Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin; Department of Medicine, Division of Cardiovascular Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
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Dynamic cardiac computed tomography characteristics of double-chambered right ventricle. Sci Rep 2022; 12:20607. [PMID: 36446892 PMCID: PMC9708647 DOI: 10.1038/s41598-022-25230-1] [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] [Received: 08/21/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
To introduce image characteristics of double-chambered right ventricle on cardiac computed tomography and set a diagnostic criterion for the diagnosis. We retrospectively collected and measured the right ventricular constrictive ratio on computed tomography images in children who had simple ventricular septal defects in the past 10 years, because double-chambered right ventricle is often associated with ventricular septal defects. The right ventricular constrictive ratio was defined as the subinfundibular cross-sectional intraluminal area during end-systole divided by the area during end-diastole in the same patient. We compared the right ventricular constrictive ratio between subjects with concomitant double-chambered right ventricle and those without. 52 children were included, and 23 (44.2%) of them have concomitant double-chambered right ventricle. In most cases (n = 21; 91.3%), the hypertrophied muscular bundles occur just inferior to the level of the supraventricular crest in the right ventricle. Mean right ventricular constrictive ratio in patients with double-chambered right ventricle (15%) was significantly smaller than that without (29%). A cut-off value of a right ventricular constrictive ratio less than 20.1% was established to diagnose double-chambered right ventricle with an 89.7% sensitivity and 78. 3% specificity. Right ventricular constrictive ratio can be a valuable asset for the preoperative diagnosis of double-chambered right ventricle with cardiac computed tomography.
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Patient positioning during pediatric cardiothoracic computed tomography using a high-resilience pad system and pre-scan measurement of chest thickness. Sci Rep 2022; 12:16618. [PMID: 36198731 PMCID: PMC9534888 DOI: 10.1038/s41598-022-21018-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 09/21/2022] [Indexed: 11/09/2022] Open
Abstract
Patient positioning at the isocenter of the CT gantry is important for optimizing image quality and radiation dose, but accurate positioning is challenging in pediatric patients. We evaluated whether the high-resilience pad and pre-scan measurement of chest thickness allow accurate positioning in pediatric patients with congenital heart disease. Sixty-seven patients aged 7 years or younger who underwent cardiothoracic CT were enrolled. The ideal table height, defined as the position at which the scanner’s and patient’s isocenters coincided, was determined by radiographers either manually (manual group) or based on the pad’s and chest’s thickness (calculated group). The distance between the two isocenters and image quality were evaluated. The calculated group demonstrated smaller isocenter distance and standard deviation (distance: 0.2 ± 5.8 mm vs. − 8.3 ± 11.6 mm, p < 0.01; absolute value: 4.1 [1.9–8.0] mm vs. 12.3 [5.1–16.3] mm, p < 0.01), and higher signal-to-noise ratio (SNR) and dose-normalized SNR (SNRD) in the descending aorta than the manual group (SNR: 39.8 [31.0–53.7] vs. 31.9 [28.9–36.6], p = 0.048, SNRD: 39.8 [31.0–53.7] vs. 31.9 [28.9–36.6], p = 0.04). The system allowed for more accurate positioning in pediatric cardiothoracic CT, yielding higher image quality.
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OUP accepted manuscript. Eur Heart J Cardiovasc Imaging 2022; 23:e279-e289. [DOI: 10.1093/ehjci/jeac048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/02/2022] [Indexed: 11/14/2022] Open
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John S, Schoeneberg L, Greenleaf CE, Salazar JD, Adebo DA. Pre- and post-operative cardiovascular CT in Stage I single ventricle palliation. J Card Surg 2021; 37:322-328. [PMID: 34845746 DOI: 10.1111/jocs.16162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 11/18/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVES The aim of this study is to describe clinical utility of low dose cardiac computed tomography (CT) in the evaluation of single ventricle physiology before and after Stage I palliation. BACKGROUND Despite the increased utilization of CT imaging and advancement of CT technology, there are limited studies describing the routine clinical use of cardiac CT and radiation dose parameters in the single ventricle Stage I palliation. METHODS This single center, retrospective study included 57 infants with single ventricle physiology who underwent cardiac CT scans between January 1, 2016 and November 30, 2020. Patients' demographic information, diagnosis, indication, total dose length product (DLP), computed tomographic dose index volume (CTDIvol), cardiac CT findings and intraoperative or intraprocedural findings were reviewed. Estimated effective radiation dose was calculated using a previously published conversion rate. RESULTS The studies were performed using different generations of CT scanners over the 4 years period: Somatom AS 128, Somatom definition edge, Somatom Force (Siemens Medical Solutions). The studies performed with dual source scanner with prospective gated technique have lower radiation dose exposure with median effective radiation dose of 0.32 mSv. CONCLUSION Pre- and post-operative cardiovascular CT in Stage I single ventricle palliation using newer generation scanners with prospective gated technique can be done with minimal radiation exposure and good image quality. Cardiac CT is a powerful imaging modality for better management planning in this group of patients.
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Affiliation(s)
- Sheba John
- Division of Pediatric Cardiology, Children's Heart Institute, University of Texas Medical School at Houston, Houston, Texas, USA
| | - Laura Schoeneberg
- Division of Pediatric Cardiology, Children's Heart Institute, University of Texas Medical School at Houston, Houston, Texas, USA
| | - Christopher E Greenleaf
- Division of Cardiothoracic Surgery, Children's Heart Institute, Memorial Hermann Hospital, University of Texas Health McGovern Medical School, Houston, Texas, USA
| | - Jorge D Salazar
- Division of Cardiothoracic Surgery, Children's Heart Institute, Memorial Hermann Hospital, University of Texas Health McGovern Medical School, Houston, Texas, USA
| | - Dilachew A Adebo
- Division of Pediatric Cardiology, Children's Heart Institute, University of Texas Medical School at Houston, Houston, Texas, USA
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Soynov IA, Kornilov IA, Kulyabin YY, Zubritskiy AV, Ponomarev DN, Nichay NR, Murashov IS, Bogachev-Prokophiev AV. Residual Lesion Diagnostics in Pediatric Postcardiotomy Extracorporeal Membrane Oxygenation and Its Outcomes. World J Pediatr Congenit Heart Surg 2021; 12:605-613. [PMID: 34597209 DOI: 10.1177/21501351211026594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND To assess the impact of diagnostic procedures in identifying residual lesions during extracorporeal membrane oxygenation (ECMO) on survival after pediatric cardiac surgery. METHODS Between January 2012 and December 2017, 74 patients required postcardiotomy ECMO. Patients were retrospectively divided into 2 groups: Group I underwent only echocardiography ([echo only] 46 patients, 62.2%) and group II (echo+) underwent additional diagnostic tests (ie, computed tomography [CT] or cardiac catheterization; 28 patients, 37.8%). Propensity score matching was used to balance the 2 groups by baseline characteristics. RESULTS Two equal groups (28 patients in each group) were formed by propensity score matching. Fourteen (50%) patients in the echo-only group and 20 (71%) patients in the echo+ group were successfully weaned from ECMO (P = .17). Four (14.3%) patients survived in the echo-only group and 15 (53.5%) patients survived in the echo+ group (P = .004). Patients in the echo+ group had a lower chance of dying compared to the echo-only group (odds ratio, 0.14.6; 95% CI, 0.039-0.52; P = .003). The residual lesions, which may have served as a mortality factor, were found by autopsy in 8 (40%) patients in the echo-only group, while none were found in the echo+ group (P = .014). CONCLUSIONS The autopsies of patients who died despite postcardiotomy ECMO support showed that in 40% of cases that had been investigated by echo only, residual lesions that had not been detected by echocardiography were present. The cardiac catheterization and CT during ECMO are effective and safe for identifying residual lesions. Early detection and repair of residual lesions may increase the survival rate of pediatric cardiac patients on ECMO.
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Affiliation(s)
- Ilya A Soynov
- Department of Congenital Heart Surgery, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Igor A Kornilov
- Department of Anesthesiology, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Yuriy Y Kulyabin
- Department of Congenital Heart Surgery, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Alexey V Zubritskiy
- Department of Congenital Heart Surgery, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Dmitry N Ponomarev
- Department of Anesthesiology, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Nataliya R Nichay
- Department of Congenital Heart Surgery, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
| | - Ivan S Murashov
- Department of Pathology, E. Meshalkin National Medical Research Center, Novosibirsk, Russian Federation
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12
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Abalo KD, Malekzadeh-Milani S, Hascoët S, Dreuil S, Feuillet T, Cohen S, Dauphin C, Filippo SD, Douchin S, Godart F, Guérin P, Helms P, Karsenty C, Lefort B, Mauran P, Ovaert C, Piéchaud JF, Thambo JB, Leuraud K, Bonnet D, Bernier MO, Rage E. Exposure to low-dose ionising radiation from cardiac catheterisation and risk of cancer: the COCCINELLE study cohort profile. BMJ Open 2021; 11:e048576. [PMID: 34344681 PMCID: PMC8336117 DOI: 10.1136/bmjopen-2020-048576] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE The COCCINELLE study is a nationwide retrospective French cohort set up to evaluate the risk of cancer in patients who undergone cardiac catheterisation (CC) procedures for diagnosis or treatment of congenital heart disease during childhood. PARTICIPANTS Children who undergone CC procedures from 1 January 2000 to 31 December 2013, before the age of 16 in one of the 15 paediatric cardiology departments which perform paediatric CC in mainland France were included. The follow-up started at the date of the first recorded CC procedure until the exit date, that is, the date of death, the date of first cancer diagnosis, the date of the 18th birthday or the 31 December 2015, whichever occurred first. The cohort was linked to the National Childhood Cancer Registry to identify patients diagnosed with cancer and with the French National Directory for the Identification of Natural Persons to retrieve the patients' vital status. FINDINGS TO DATE A total of 17 104 children were included in the cohort and followed for 110 335 person-years, with 22 227 CC procedures collected. Among the patients, 81.6% received only one procedure. Fifty-nine cancer cases were observed in the cohort. Standardised incidence ratios (SIRs) were increased for all-cancer (SIR=3.8, 95% CI: 2.9 to 4.9), leukaemia (SIR=3.3, 95% CI: 2.0 to 5.4), lymphoma (SIR=14.9, 95% CI: 9.9 to 22.5) and solid cancers excluding central nervous system (CNS) tumours (SIR=3.3, 95% CI: 2.0 to 5.5) compared with the general population. FUTURE PLANS Dose reconstruction is currently underway to estimate individual cumulative doses absorbed to relevant organs, including red bone marrow and brain for respectively haematologic disorders and CNS tumours risk estimation. A dose-response analysis will be conducted with consideration to confounding factors such as age at exposure, gender, predisposing factors to cancer and other sources of medical diagnostic low-dose ionising radiation.
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Affiliation(s)
- Kossi Dovene Abalo
- PSE-SANTE/SESANE/Laboratory of Epidemiology, Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, Île-de-France, France
| | - Sophie Malekzadeh-Milani
- Department of Congenital and Pediatric Cardiology, Necker-Sick Children University Hospital, M3C-Necker, Université de Paris, Paris, France
| | - Sébastien Hascoët
- Paediatric and Congenital Cardiac Surgery Department, M3C Marie-Lannelongue Hospital, National Reference Centre, Groupe Hospitalier Saint-Joseph, Paris Saclay University, Plessis-Robinson, France
| | - Serge Dreuil
- PSE-SANTE/SER/UEM, Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, Île-de-France, France
| | | | - Sarah Cohen
- Paediatric and Congenital Cardiac Surgery Department, M3C Marie-Lannelongue Hospital, National Reference Centre, Groupe Hospitalier Saint-Joseph, Paris Saclay University, Plessis-Robinson, France
| | - Claire Dauphin
- Cardiology and Vascular Department, Hopital Gabriel Montpied, Clermont-Ferrand, France
| | - Sylvie Di Filippo
- Paediatric and Congential Cardiology Department, Hôpital Cardiologique Louis Pradel, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Stéphanie Douchin
- Cardiopédiatrie, Hôpital couple enfant, CHU Grenoble Alpes, Grenoble cedex 9, France, Grenoble, France
| | - François Godart
- Service de Cardiologie Infantile et Congénitale, Institut Cœur Poumon, Lille Cedex, Lille, France
| | - Patrice Guérin
- Clinique Cardiologique et des Maladies Vasculaires, CIC 1413, Institut du Thorax, Cardiopédiatrie, CHU Nantes, INSERM, Nantes Université, Nantes, France
| | - Pauline Helms
- Unit of Cardiopediatrics, University Hospital of Strasbourg, Strasbourg, France
| | - Clement Karsenty
- Pediatric and Congenital Cardiology, Children's Hospital and INSERM U1048, I2MC, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
| | - Bruno Lefort
- Institut des Cardiopathies Congénitales, CHRU Tours, Tours, France
| | - Pierre Mauran
- Unité de cardiologie pédiatrique et congénitale, American Memorial Hospital, CHU de Reims, 47 rue Cognacq-Jay, Reims Cedex, Reims, France
| | - Caroline Ovaert
- Cardiologie pédiatrique et congénitale, Timone enfants, AP-HM et INSERM 1251, Aix-Marseille Université, Marseille, France
| | - Jean-François Piéchaud
- Institut Cardiovasculaire Paris Sud, Institut Hospitalier Jacques-Cartier, Massy, France
| | - Jean-Benoît Thambo
- Department of Pediatric and Adult Congenital Cardiology, Bordeaux University Hospital (CHU), Bordeaux, France
| | - Klervi Leuraud
- PSE-SANTE/SESANE/Laboratory of Epidemiology, Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, Île-de-France, France
| | - Damien Bonnet
- Department of Congenital and Pediatric Cardiology, Necker-Sick Children University Hospital, M3C-Necker, Université de Paris, Paris, France
| | - Marie-Odile Bernier
- PSE-SANTE/SESANE/Laboratory of Epidemiology, Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, Île-de-France, France
| | - Estelle Rage
- PSE-SANTE/SESANE/Laboratory of Epidemiology, Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, Île-de-France, France
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Goo HW, Siripornpitak S, Chen SJ, Lilyasari O, Zhong YM, Latiff HA, Maeda E, Kim YJ, Tsai IC, Seo DM. Pediatric Cardiothoracic CT Guideline Provided by the Asian Society of Cardiovascular Imaging Congenital Heart Disease Study Group: Part 2. Contemporary Clinical Applications. Korean J Radiol 2021; 22:1397-1415. [PMID: 33987995 PMCID: PMC8316776 DOI: 10.3348/kjr.2020.1332] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/27/2021] [Accepted: 01/31/2021] [Indexed: 12/14/2022] Open
Abstract
The use of pediatric cardiothoracic CT for congenital heart disease (CHD) was traditionally limited to the morphologic evaluation of the extracardiac thoracic vessels, lungs, and airways. Currently, the applications of CT have increased, owing to technological advancements in hardware and software as well as several dose-reduction measures. In the previously published part 1 of the guideline by the Asian Society of Cardiovascular Imaging Congenital Heart Disease Study Group, we reviewed the prerequisite technical knowledge for clinical applications in a user-friendly and vendor-specific manner. Herein, we present the second part of our guideline on contemporary clinical applications of pediatric cardiothoracic CT for CHD based on the consensus of experts from the Asian Society of Cardiovascular Imaging CHD Study Group. This guideline describes up-to-date clinical applications effectively in a systematic fashion.
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Affiliation(s)
- Hyun Woo Goo
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Suvipaporn Siripornpitak
- Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Shyh Jye Chen
- Department of Medical Imaging, National Taiwan University, Medical College and Hospital, Taipei, Taiwan
| | - Oktavia Lilyasari
- Department of Cardiology and Vascular Medicine, Universitas Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Yu Min Zhong
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai, China
| | - Haifa Abdul Latiff
- Pediatric and Congenital Heart Centre, Institut Jantung Negara, Kuala Lumpur, Malaysia
| | - Eriko Maeda
- Department of Radiology, The University of Tokyo, Tokyo, Japan
| | - Young Jin Kim
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - I Chen Tsai
- Congenital Heart Disease Study Group Member of the Asian Society of Cardiovascular Imaging, Taichung, Taiwan
| | - Dong Man Seo
- Department of Cardiothoracic Surgery, Ewha Womans University Seoul Hospital, Seoul, Korea
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Feasibility of using a non-sedation protocol for evaluation of neonatal congenital heart disease by using a 16-cm wide-detector computed tomography with a low radiation dose: preliminary experience from a single pediatric medical center. Int J Cardiovasc Imaging 2021; 37:2303-2310. [PMID: 33656630 DOI: 10.1007/s10554-021-02197-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
The aim of this study is to explore the feasibility of using a non-sedation protocol for the evaluation of neonatal congenital heart disease by using 16-cm wide-detector CT with a low radiation dose. Thirty-four neonates (group 1) were enrolled to undergo cardiac CT without sedation between August 2018 and March 2019. The control group (group 2) comprising 20 inpatient neonates was sedated. Cardiac CT was performed using 16-cm area detector 320-row CT with free breathing and prospective ECG-triggering scan mode. The examination completion time, radiation dose, and image quality were compared between the groups. The results of cardiac CT for patients in group 1 who underwent surgery were compared with surgical findings. Intergroup differences in body weight, age, examination completion time, radiation dose, and image quality evaluation were not significant. There was no significant difference in oxygen saturation before and after the examination in group 1. In all, 98 separate cardiovascular abnormalities in 27 group 1 patients were confirmed using surgical reports. The overall sensitivity, specificity, positive predictive value, and negative predictive value of cardiac CT were 94.90%, 100.0%, 100.0%, and 98.53%. The non-sedation protocol can be applied in neonates with congenital heart disease by using 16-cm wide-detector CT with a low radiation dose. Based on the image quality obtained, non-sedative examination did not extend the examination completion time and helped avoid the possible side effects of sedative drugs.
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15
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Selection of optimal cardiac phases for ECG-triggered coronary CT angiography in pediatrics. Phys Med 2021; 81:155-161. [PMID: 33461028 DOI: 10.1016/j.ejmp.2020.12.002] [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: 08/26/2020] [Revised: 10/11/2020] [Accepted: 12/06/2020] [Indexed: 11/24/2022] Open
Abstract
PURPOSE The use of coronary computed tomography angiography (CCTA) in children remains limited by patient's irradiation, and motion artefacts impairing image quality. Triggering the acquisition at the appropriate moment, and acquiring only necessary components of the cardiac cycle could overcome these limitations. Yet, optimal cardiac intervals to perform CCTA as a function of heart rate (HR) have not yet been addressed in pediatrics. METHODS Fifty children with coronary artery anomalies underwent a CCTA on a wide-coverage single-beat CT scanner. Multiple phases from 25% to 85% of the R-R interval were acquired and reconstructed with 10% increments. Two radiologists independently assessed motion artifacts on each cardiac phase using a 4-point semi-quantitative scale. RESULTS At patient level, the best phase for acquisition was found in diastole for patients with HR ≤ 75 bpm and in systole for patients with HR > 85 bpm. At coronary segments and structures level, median optimal phases were reported at 70%, 80%, 47%, 50%, and 54% of the R-R interval for patients with HR ≤ 60, 61-75, 86-100, 101-130, and >130 bpm respectively. For patients with HR between 76 and 85 bpm, no clear trend could be observed. Optimal acquisition durations represented 10% (2 phases), 20% (3 phases), 50% (multiphase), 20% (3 phases), and 10% (2 phases) of the R-R interval for patients with HR ≤ 60, 61-75, 76-100, 101-130, and >130 bpm, respectively. CONCLUSIONS Optimal positioning and duration of CCTA acquisition intervals were investigated as a function of children's HR, to reduce motion artifacts and patient's irradiation.
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Comparison of quantitative image quality of cardiac computed tomography between raw-data-based and model-based iterative reconstruction algorithms with an emphasis on image sharpness. Pediatr Radiol 2020; 50:1570-1578. [PMID: 32591981 DOI: 10.1007/s00247-020-04741-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/12/2020] [Accepted: 05/22/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND Image sharpness is commonly degraded on cardiac CT images reconstructed using iterative reconstruction algorithms. OBJECTIVE To compare the image quality of cardiac CT between raw-data-based and model-based iterative reconstruction algorithms developed by the same CT vendor in children and young adults with congenital heart disease. MATERIALS AND METHODS In 29 patients with congenital heart disease, we reconstructed 39 cardiac CT datasets using raw-data-based and model-based iterative reconstruction algorithms. We performed quantitative analysis of image sharpness using distance25-75% and angle25-75% on a line density profile across an edge of the descending thoracic aorta in addition to CT attenuation, image noise, signal-to-noise ratio and contrast-to-noise ratio. We compared these quantitative image-quality measures between the two algorithms. RESULTS CT attenuation did not show significant differences between the algorithms (P>0.05) except in the aorta. Image noise was small but significantly higher in the model-based algorithm than in the raw-data-based algorithm (4.8±2.3 Hounsfield units [HU] vs. 4.7±2.1 HU, P<0.014). Signal-to-noise ratio (110.2±50.9 vs. 108.4±50.4, P=0.050) and contrast-to-noise ratio (91.0±45.7 vs. 89.6±45.1, P=0.063) showed marginal significance between the two algorithms. The model-based algorithm showed a significantly smaller distance25-75% (1.4±0.4 mm vs. 1.6±0.3 mm, P<0.001) and a significantly higher angle25-75% (77.0±4.3° vs. 74.1±5.7°, P<0.001) than the raw-data-based algorithm. CONCLUSION Compared with the raw-data-based algorithm, the model-based iterative reconstruction algorithm demonstrated better image sharpness and higher image noise on cardiac CT in patients with congenital heart disease.
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Evaluating the severity of aortic coarctation in infants using anatomic features measured on CTA. Eur Radiol 2020; 31:1216-1226. [PMID: 32885294 DOI: 10.1007/s00330-020-07238-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 06/26/2020] [Accepted: 08/27/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES A machine learning model was developed to evaluate the severity of aortic coarctation (CoA) in infants based on anatomical features measured on CTA. METHODS In total, 239 infant patients undergoing both thorax CTA and echocardiography were retrospectively reviewed. The patients were assigned to either mild or severe CoA group based on their pressure gradient on echocardiography. They were further divided into patent ductus arteriosus (PDA) and non-PDA groups. The anatomical features were measured on double-oblique multiplanar reconstructed CTA images. Then, the optimal features were identified by using the Boruta algorithm. Subsequently, the coarctation severity was classified using linear discriminant analysis (LDA). We further investigated the relationship between the anatomical features and re-coarctation using Cox regression. RESULTS Four anatomical features showed significant differences between the mild and severe CoA groups, including the smallest aortic cross-sectional area indexed to body surface area (p < 0.001), the narrowest aortic diameter (CoA diameter) indexed to height (p < 0.001), the diameter of the descending aorta at the diaphragmatic level (p < 0.001) and weight (p = 0.005). With these features, accuracy of 88.6% and 90.2%, sensitivity of 65.0% and 72.1%, and specificity of 92.9% and 100% were obtained for classifying the CoA severity in the non-PDA and PDA groups, respectively. Moreover, CoA diameter indexed to weight was associated with the risk of re-coarctation. CONCLUSIONS CoA severity can be evaluated by using LDA with anatomical features. When quantifying the severity of CoA and risk of re-coarctation, both anatomical alternations at the CoA site and the growth of the patients need to be considered. KEY POINTS • CTA is routinely ordered for infants with coarctation of the aorta; however, whether anatomical variations observed with CTA could be used to assess the severity of CoA remains unknown. • Using the diameter and area of the coarctation site adjusted to body growth as features, the LDA model achieved an accuracy of 88.6% and 90.2% in differentiating between the mild and severe CoA patients in the non-PDA group and PDA group, respectively. • The narrowest aortic diameter (CoA diameter) indexed to weight has a hazard ratio of 10.29 for re-coarctation.
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Chen SJ, Huang JH, Lee WJ, Lin MT, Chen YS, Wang JK. Diagnosis of Pulmonary Arterial Hypertension in Children by Using Cardiac Computed Tomography. Korean J Radiol 2020; 20:976-984. [PMID: 31132823 PMCID: PMC6536789 DOI: 10.3348/kjr.2018.0673] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 02/02/2019] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To establish diagnostic criteria for pulmonary arterial hypertension (PAH) in children by using parameters obtained through noninvasive cardiac computed tomography (CCT). MATERIALS AND METHODS We retrospectively measured parameters from CCT images of children from a single institution in a multiple stepwise process. A total of 208 children with mean age of 10.5 years (range: 4 days-18.9 years) were assessed. The variables were classified into three groups: the great arteries; the ventricular walls; and the bilateral ventricular cavities. The relationship between the parameters obtained from the CCT images and mean pulmonary arterial pressure (mPAP) was tested and adjusted by the children's body size. Reference curves for the pulmonary trunk diameter (PTD) and ratio of diameter of pulmonary trunk to ascending aorta (rPTAo) of children with CCT images of normal hearts, adjusted for height, were plotted. Threshold lines were established on the reference curves. RESULTS PTD and rPTAo on the CCT images were significantly positively correlated with mPAP (r > 0.85, p < 0.01). Height was the body size parameter most correlated with PTD (r = 0.91, p < 0.01) and rPTAo (r = -0.69, p < 0.01). On the basis of the threshold lines on the reference curves, PTD and rPTAo both showed 88.9% sensitivity for PAH diagnosis, with negative predictive values of 93.3% and 92.9%, respectively. CONCLUSION PTD and rPTAo measured from CCT images were significantly correlated with mPAP in children. Reference curves and the formula of PTD and rPTAo adjusted for height could be practical for diagnosing PAH in children.
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Affiliation(s)
- Shyh Jye Chen
- Department of Radiology and Medical Imaging, National Taiwan University Hospital, Medical College, National Taiwan University, Taipei, Taiwan
| | - Jou Hsuan Huang
- Department of Radiology and Medical Imaging, National Taiwan University Hospital, Medical College, National Taiwan University, Taipei, Taiwan
| | - Wen Jeng Lee
- Department of Radiology and Medical Imaging, National Taiwan University Hospital, Medical College, National Taiwan University, Taipei, Taiwan
| | - Ming Tai Lin
- Department of Pediatrics, National Taiwan University Hospital, Medical College, National Taiwan University, Taipei, Taiwan.
| | - Yih Sharng Chen
- Department of Surgery, National Taiwan University Hospital, Medical College, National Taiwan University, Taipei, Taiwan
| | - Jou Kou Wang
- Department of Pediatrics, National Taiwan University Hospital, Medical College, National Taiwan University, Taipei, Taiwan
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Hong SH, Goo HW, Maeda E, Choo KS, Tsai IC. User-Friendly Vendor-Specific Guideline for Pediatric Cardiothoracic Computed Tomography Provided by the Asian Society of Cardiovascular Imaging Congenital Heart Disease Study Group: Part 1. Imaging Techniques. Korean J Radiol 2019; 20:190-204. [PMID: 30672159 PMCID: PMC6342752 DOI: 10.3348/kjr.2018.0571] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 09/30/2018] [Indexed: 12/13/2022] Open
Abstract
Optimal performance of pediatric cardiothoracic computed tomography (CT) is technically challenging and may need different approaches for different types of CT scanners. To meet the technical demands and improve clinical standards, a practical, user-friendly, and vendor-specific guideline for pediatric cardiothoracic CT needs to be developed for children with congenital heart disease (CHD). In this article, we have attempted to describe such guideline based on the consensus of experts in the Asian Society of Cardiovascular Imaging CHD Study Group. This first part describes the imaging techniques of pediatric cardiothoracic CT, and it includes recommendations for patient preparation, scan techniques, radiation dose, intravenous injection protocol, post-processing, and vendor-specific protocols.
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Affiliation(s)
- Sun Hwa Hong
- Department of Radiology, Mediplex Sejong Hospital, Incheon, Korea
| | - Hyun Woo Goo
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
| | - Eriko Maeda
- Department of Radiology, The University of Tokyo, Tokyo, Japan
| | - Ki Seok Choo
- Department of Radiology, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - I Chen Tsai
- Congenital Heart Disease Study Group Member of the Asian Society of Cardiovascular Imaging, Taiwan
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21
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Rigsby CK, McKenney SE, Hill KD, Chelliah A, Einstein AJ, Han BK, Robinson JD, Sammet CL, Slesnick TC, Frush DP. Radiation dose management for pediatric cardiac computed tomography: a report from the Image Gently 'Have-A-Heart' campaign. Pediatr Radiol 2018; 48:5-20. [PMID: 29292481 PMCID: PMC6230472 DOI: 10.1007/s00247-017-3991-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/21/2017] [Accepted: 09/12/2017] [Indexed: 12/28/2022]
Abstract
Children with congenital or acquired heart disease can be exposed to relatively high lifetime cumulative doses of ionizing radiation from necessary medical imaging procedures including radiography, fluoroscopic procedures including diagnostic and interventional cardiac catheterizations, electrophysiology examinations, cardiac computed tomography (CT) studies, and nuclear cardiology examinations. Despite the clinical necessity of these imaging studies, the related ionizing radiation exposure could pose an increased lifetime attributable cancer risk. The Image Gently "Have-A-Heart" campaign is promoting the appropriate use of medical imaging studies in children with congenital or acquired heart disease while minimizing radiation exposure. The focus of this manuscript is to provide a comprehensive review of radiation dose management and CT performance in children with congenital or acquired heart disease.
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Affiliation(s)
- Cynthia K Rigsby
- Department of Medical Imaging #9, Ann & Robert H. Lurie Children's Hospital of Chicago, Departments of Radiology and Pediatrics, Northwestern University Feinberg School of Medicine, 225 E. Chicago Ave., Chicago, IL, 60611, USA.
| | - Sarah E McKenney
- Division of Diagnostic Imaging and Radiology, Children's National Medical Center, Washington, DC, USA
| | - Kevin D Hill
- Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Anjali Chelliah
- Division of Pediatric Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY, USA
| | - Andrew J Einstein
- Division of Cardiology, Departments of Medicine and Radiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, NY, USA
| | - B Kelly Han
- Department of Pediatrics, Children's Heart Clinic at The Children's Hospitals and Clinics of Minnesota, Minneapolis, MN, USA
| | - Joshua D Robinson
- Division of Pediatric Cardiology, Ann & Robert H. Lurie Children's Hospital of Chicago, Departments of Pediatrics and Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Christina L Sammet
- Department of Medical Imaging #9, Ann & Robert H. Lurie Children's Hospital of Chicago, Departments of Radiology and Pediatrics, Northwestern University Feinberg School of Medicine, 225 E. Chicago Ave., Chicago, IL, 60611, USA
| | - Timothy C Slesnick
- Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Donald P Frush
- Department of Radiology, Duke University Medical Center, Durham, NC, USA
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Chen PT, Lin MT, Chen YS, Chen SJ, Wu MH. Computed tomography predict regression of coronary artery aneurysm in patients with Kawasaki disease. J Formos Med Assoc 2017; 116:806-814. [PMID: 28734587 DOI: 10.1016/j.jfma.2017.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/09/2017] [Accepted: 07/04/2017] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND/PURPOSE The study evaluated possible factors influencing the regression of coronary artery aneurysm (CAA) in patients with Kawasaki disease (KD) through electrocardiographically gated cardiac computed tomography (CT). METHODS 18 patients with KD exhibited CAAs in at least 2 CT examinations conducted from December 2004 to September 2015, and 37 aneurysms were observed. Every aneurysm was corrected through the descending aorta at the origin level of the left main coronary artery under a normal distribution and measured under a fixed window level. These aneurysms were divided into 2 groups according to regression. Clinical symptoms, laboratory data, and imaging characteristics of both groups were analyzed. RESULTS All the aneurysms of 4 patients decreased in size, and totally, 14 aneurysms (37%) regressed. CAA regression tends to occur early after disease onset. No significant differences were observed in sex, aneurysm location, and the distance to the orifice between the 2 groups. The aneurysms with no calcification (p = 0.012), smaller diameter (p = 0.004), younger disease onset age (p = 0.048), and ectatic shape (p < 0.001) were more likely to regress according to univariate analysis. Receiver operating characteristic analysis revealed that the possible cut-off point of the maximal diameter to yield the highest sensitivity (91.3%) and specificity (92.9%) to predict CAA regression was 5.6 mm. CONCLUSION Calcified CAAs in patients with KD was less likely to regress. The aneurysm size and shape as well as disease onset age were possible factors influencing regression.
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Affiliation(s)
- Po-Ting Chen
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - Ming-Tai Lin
- Department of Pediatrics, National Taiwan University Hospital and Medical College, National Taiwan University, Taipei, Taiwan
| | - Yih-Sharng Chen
- Department of Surgery, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
| | - Shyh-Jye Chen
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan.
| | - Mei-Hwan Wu
- Department of Pediatrics, National Taiwan University Hospital and Medical College, National Taiwan University, Taipei, Taiwan
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Congenital cardiac rhabdomyoma. J Formos Med Assoc 2016; 115:678-9. [DOI: 10.1016/j.jfma.2015.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/26/2015] [Accepted: 12/10/2015] [Indexed: 11/18/2022] Open
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Third-generation dual-source 70-kVp chest CT angiography with advanced iterative reconstruction in young children: image quality and radiation dose reduction. Pediatr Radiol 2016; 46:462-72. [PMID: 26739141 DOI: 10.1007/s00247-015-3510-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 09/27/2015] [Accepted: 11/12/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Many technical updates have been made in multi-detector CT. OBJECTIVE To evaluate image quality and radiation dose of high-pitch second- and third-generation dual-source chest CT angiography and to assess the effects of different levels of advanced modeled iterative reconstruction (ADMIRE) in newborns and children. MATERIALS AND METHODS Chest CT angiography (70 kVp) was performed in 42 children (age 158 ± 267 days, range 1-1,194 days). We evaluated subjective and objective image quality, and radiation dose with filtered back projection (FBP) and different strength levels of ADMIRE. For comparison were 42 matched controls examined with a second-generation 128-slice dual-source CT-scanner (80 kVp). RESULTS ADMIRE demonstrated improved objective and subjective image quality (P < .01). Mean signal/noise, contrast/noise and subjective image quality were 11.9, 10.0 and 1.9, respectively, for the 80 kVp mode and 11.2, 10.0 and 1.9 for the 70 kVp mode. With ADMIRE, the corresponding values for the 70 kVp mode were 13.7, 12.1 and 1.4 at strength level 2 and 17.6, 15.6 and 1.2 at strength level 4. Mean CTDIvol, DLP and effective dose were significantly lower with the 70-kVp mode (0.31 mGy, 5.33 mGy*cm, 0.36 mSv) compared to the 80-kVp mode (0.46 mGy, 9.17 mGy*cm, 0.62 mSv; P < .01). CONCLUSION The third-generation dual-source CT at 70 kVp provided good objective and subjective image quality at lower radiation exposure. ADMIRE improved objective and subjective image quality.
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Early and intermediate-term results of the extracardiac conduit total cavopulmonary connection for functional single-ventricle hearts. J Formos Med Assoc 2016; 115:318-24. [PMID: 26853857 DOI: 10.1016/j.jfma.2015.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 12/17/2015] [Accepted: 12/23/2015] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND/PURPOSE Fontan operation has evolved from atriopulmonary connection to total cavopulmonary connection (TCPC) due to its advantages in terms of hemodynamics and reduction of atrium-related complications. We analyzed the early and intermediate-term results of extracardiac conduit TCPC (EC-TCPC) procedure in patients with functional single ventricle to investigate the risk factors of surgical mortality and intermediate failure. METHODS Retrospective review of the medical records of 88 consecutive patients with functional single ventricle who underwent EC-TCPC from 2000 to 2013 was conducted. RESULTS The follow-up was 100% complete, ranging from 3 months to 13 years (mean 7.0 ± 3.8 years). There were two (2.3%) hospital and 18 (20.4%) late deaths. The estimated event-free survival rates at 1 year, 5 years, and 10 years were 90.6%, 89.3%, and 77.2%, respectively. On univariate analysis, fenestration was the only risk factor for surgical mortality (p = 0.027). On multivariate analysis, the significant atrioventricular valve regurgitation was the only risk factor for intermediate failure (p = 0.017). CONCLUSION The clinical results of EC-TCPC in patients with functional single ventricle were satisfactory. The patients who needed fenestration during operation had higher risk of surgical mortality. Significant atrioventricular valve regurgitation had negative impact on intermediate survival.
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Raimondi F, Warin-Fresse K. Computed tomography imaging in children with congenital heart disease: Indications and radiation dose optimization. Arch Cardiovasc Dis 2016; 109:150-7. [PMID: 26782623 DOI: 10.1016/j.acvd.2015.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/16/2015] [Accepted: 11/18/2015] [Indexed: 11/24/2022]
Abstract
Computed tomography (CT) technology is acquiring a key role in the diagnostic process of complex cardiac congenital anomalies. Recent advances and improvements in spatial and temporal resolution and radiation dose are encouraging the use of CT scanning in children. Paediatric cardiologists should have a good knowledge of the potential of CT techniques and their limitations to plan and properly perform CT examinations without forgetting radiation concerns. In this paper, we will discuss the principal indications for CT scans in newborns and children in our clinical practice. We will also outline the most-used strategies for dose reduction. Basic knowledge about the various CT techniques is crucial, not only to perform, but also to interpret CT results, thus helping the medical and surgical management of patients.
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Affiliation(s)
- Francesca Raimondi
- Unité médicochirurgicale de cardiologie congénitale et pédiatrique, service de radiologie pédiatrique, centre de référence des maladies cardiaques congénitales complexes - M3C, hôpital universitaire Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France; Université Paris Descartes, Sorbonne Paris Cité, 15, rue de l'École-de-Médecine, 75006 Paris, France.
| | - Karine Warin-Fresse
- Imagerie cardiovasculaire, fédération des cardiopathies congénitales, CHU de Nantes, 44093 Nantes cedex 1, France
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Habib Geryes B, Calmon R, Khraiche D, Boddaert N, Bonnet D, Raimondi F. Radiation dose reduction in paediatric coronary computed tomography: assessment of effective dose and image quality. Eur Radiol 2015; 26:2030-8. [PMID: 26433957 DOI: 10.1007/s00330-015-4032-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 09/07/2015] [Accepted: 09/15/2015] [Indexed: 01/13/2023]
Abstract
OBJECTIVES To assess the impact of different protocols on radiation dose and image quality for paediatric coronary computed tomography (cCT). MATERIALS AND METHODS From January-2012 to June-2014, 140 children who underwent cCT on a 64-slice scanner were included. Two consecutive changes in imaging protocols were performed: 1) the use of adaptive statistical iterative reconstruction (ASIR); 2) the optimization of acquisition parameters. Effective dose (ED) was calculated by conversion of the dose-length product. Image quality was assessed as excellent, good or with significant artefacts. RESULTS Patients were divided in three age groups: 0-4, 5-7 and 8-18 years. The use of ASIR combined to the adjustment of scan settings allowed a reduction in the median ED of 58 %, 82 % and 85 % in 0-4, 5-7 and 8-18 years group, respectively (7.3 ± 1.4 vs 3.1 ± 0.7 mSv, 5.5 ± 1.6 vs 1 ± 1.9 mSv and 5.3 ± 5.0 vs 0.8 ± 2.0 mSv, all p < 0,05). Prospective protocol was used in 51 % of children. The reduction in radiation dose was not associated with reduction in diagnostic image quality as assessed by the frequency of coronary segments with excellent or good image quality (88 %). CONCLUSIONS cCT can be obtained at very low radiation doses in children using ASIR, and prospective acquisition with optimized imaging parameters. KEY POINTS • Using ASIR allows 25 % to 41 % reduction in the ED. • Prospective protocol is used up to 51 % of children after premedication. • Low dose is possible using ASIR and optimized prospective paediatric cCT.
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Affiliation(s)
- Bouchra Habib Geryes
- Direction de la qualité et de la gestion des risques, Hôpital Universitaire Necker Enfants Malades, 149, rue de Sèvres, 75743, Paris Cedex 15, France
| | - Raphael Calmon
- Service de Radiologie pédiatrique, Hôpital Universitaire Necker Enfants Malades, 149, rue de Sèvres, 75743, Paris Cedex 15, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Diala Khraiche
- Unité Médico-Chirurgicale de Cardiologie Congénitale et Pédiatrique, Centre de référence Malformations Cardiaques Congénitales Complexes - M3C, 149, rue de Sèvres, 75743, Paris Cedex 15, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Nathalie Boddaert
- Service de Radiologie pédiatrique, Hôpital Universitaire Necker Enfants Malades, 149, rue de Sèvres, 75743, Paris Cedex 15, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Damien Bonnet
- Unité Médico-Chirurgicale de Cardiologie Congénitale et Pédiatrique, Centre de référence Malformations Cardiaques Congénitales Complexes - M3C, 149, rue de Sèvres, 75743, Paris Cedex 15, France.,Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - Francesca Raimondi
- Service de Radiologie pédiatrique, Hôpital Universitaire Necker Enfants Malades, 149, rue de Sèvres, 75743, Paris Cedex 15, France. .,Unité Médico-Chirurgicale de Cardiologie Congénitale et Pédiatrique, Centre de référence Malformations Cardiaques Congénitales Complexes - M3C, 149, rue de Sèvres, 75743, Paris Cedex 15, France. .,Sorbonne Paris Cité, Université Paris Descartes, Paris, France.
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