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Peng Y, Su X, Hu L, Wang Q, Ouyang R, Sun A, Guo C, Yao X, Zhang Y, Wang L, Zhong Y. Feasibility of Three-Dimensional Balanced Steady-State Free Precession Cine Magnetic Resonance Imaging Combined with an Image Denoising Technique to Evaluate Cardiac Function in Children with Repaired Tetralogy of Fallot. Korean J Radiol 2021; 22:1525-1536. [PMID: 34448382 PMCID: PMC8390812 DOI: 10.3348/kjr.2020.0850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 03/06/2021] [Accepted: 03/13/2021] [Indexed: 11/18/2022] Open
Abstract
Objective To investigate the feasibility of cine three-dimensional (3D) balanced steady-state free precession (b-SSFP) imaging combined with a non-local means (NLM) algorithm for image denoising in evaluating cardiac function in children with repaired tetralogy of Fallot (rTOF). Materials and Methods Thirty-five patients with rTOF (mean age, 12 years; range, 7–18 years) were enrolled to undergo cardiac cine image acquisition, including two-dimensional (2D) b-SSFP, 3D b-SSFP, and 3D b-SSFP combined with NLM. End-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), and ejection fraction (EF) of the two ventricles were measured and indexed by body surface index. Acquisition time and image quality were recorded and compared among the three imaging sequences. Results 3D b-SSFP with denoising vs. 2D b-SSFP had high correlation coefficients for EDV, ESV, SV, and EF of the left (0.959–0.991; p < 0.001) as well as right (0.755–0.965; p < 0.001) ventricular metrics. The image acquisition time ± standard deviation (SD) was 25.1 ± 2.4 seconds for 3D b-SSFP compared with 277.6 ± 0.7 seconds for 2D b-SSFP, indicating a significantly shorter time with the 3D than the 2D sequence (p < 0.001). Image quality score was better with 3D b-SSFP combined with denoising than with 3D b-SSFP (mean ± SD, 3.8 ± 0.6 vs. 3.5 ± 0.6; p = 0.005). Signal-to-noise ratios for blood and myocardium as well as contrast between blood and myocardium were higher for 3D b-SSFP combined with denoising than for 3D b-SSFP (p < 0.05 for all but septal myocardium). Conclusion The 3D b-SSFP sequence can significantly reduce acquisition time compared to the 2D b-SSFP sequence for cine imaging in the evaluation of ventricular function in children with rTOF, and its quality can be further improved by combining it with an NLM denoising method.
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Affiliation(s)
- YaFeng Peng
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - XinYu Su
- University of Shanghai for Science and Technology, Institute of Medical Imaging Engineering, School of Medical Instrument and Food Engineering, Shanghai, China
| | - LiWei Hu
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Wang
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - RongZhen Ouyang
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - AiMin Sun
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Guo
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - XiaoFen Yao
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong Zhang
- MR Research, GE Healthcare, Shanghai, China
| | - LiJia Wang
- University of Shanghai for Science and Technology, Institute of Medical Imaging Engineering, School of Medical Instrument and Food Engineering, Shanghai, China
| | - YuMin Zhong
- Diagnostic Imaging Center of Shanghai Children's Medical Center Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Yacoub MH, Hosny H, Afifi A, Nagy M, Mahgoub A, Simry W, AbouZeina MG, Doss R, El Sawy A, Shehata N, Elafifi A, Abdullah H, Romeih S. Novel concepts and early results of repairing common arterial trunk. Eur J Cardiothorac Surg 2021; 61:562-571. [PMID: 34347066 PMCID: PMC8922708 DOI: 10.1093/ejcts/ezab336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Common Arterial Trunk (CAT) continues to have a very poor prognosis globally. To address that, we have developed a novel technique targeting key concepts for the correction of all components of the anomaly, using autologous arterial tissue. This aims to enhance results, availability worldwide, and importantly to avoid the need for repeated reoperations. METHODS From January 2019 to 4 January 2021, all patients with isolated CAT had repair of the defect using autologous arterial trunk tissue with direct right ventricle (RV) to pulmonary artery (PA) connection. Clinical outcomes, follow-up which included multi-slice computed tomography 3D segmentation and 4D cardiovascular magnetic resonance flow, are presented. RESULTS Twenty patients were included in the study (median age 4.5 months). There were 2 hospital deaths due to systemic infection and pulmonary hypertensive crisis, respectively. Following discharge all patients remained asymptomatic with no signs of heart failure and improved pattern of growth (median follow-up: 8 months). Early postoperative 3D segmentation showed a conical shaped neo-right ventricular outflow chamber connecting the body of the RV to the main PA through a valveless ostium, and normal crossing of PA and neo-aorta. 4D cardiovascular magnetic resonance pattern of flow showed normal rapid laminar flow through the atrioventricular valves followed by a vortex towards the outflow tracts. There was laminar flow through the neo-aorta and neo-PA with velocity not exceeding 2.5 m/s. The PA regurgitant fraction was 25 ± 5% and was limited to early diastole. CONCLUSIONS The initial results of utilizing the key concepts, using autologous arterial tissue for the repair of CAT, are encouraging, both clinically and by multimodality imaging.
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Affiliation(s)
- Magdi H Yacoub
- Cardiac Surgery Department, Aswan Heart Centre, Aswan, Egypt.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Hatem Hosny
- Cardiac Surgery Department, Aswan Heart Centre, Aswan, Egypt
| | - Ahmed Afifi
- Cardiac Surgery Department, Aswan Heart Centre, Aswan, Egypt.,Cardiac Surgery Department, National Heart Institute, Giza, Egypt
| | - Mohamed Nagy
- Biomedical Engineering and Innovation Laboratory, Aswan Heart Centre, Aswan, Egypt
| | - Ahmed Mahgoub
- Cardiac Surgery Department, Aswan Heart Centre, Aswan, Egypt
| | - Walid Simry
- Cardiac Surgery Department, Aswan Heart Centre, Aswan, Egypt.,Cardiac Surgery Department, National Heart Institute, Giza, Egypt
| | | | - Ramy Doss
- Internal Medicine Department, Baylor University Medical Center, Dallas, TX, USA
| | - Amr El Sawy
- Biomedical Engineering and Innovation Laboratory, Aswan Heart Centre, Aswan, Egypt
| | - Nairouz Shehata
- Biomedical Engineering and Innovation Laboratory, Aswan Heart Centre, Aswan, Egypt
| | | | - Hedaia Abdullah
- Pediatric Intensive Care unit, Aswan Heart Centre, Aswan, Egypt
| | - Soha Romeih
- Radiology Department, Aswan Heart Centre, Aswan, Egypt.,Cardiology Department, Tanta University, Tanta, Egypt
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