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Virtual cardiotomy based on 3-D MRI for preoperative planning in congenital heart disease

Virtual cardiotomy based on 3-D MRI for preoperative planning in congenital heart disease,10.1007/s00247-008-1032-5,Pediatric Radiology,Thomas Sangild

Virtual cardiotomy based on 3-D MRI for preoperative planning in congenital heart disease   (Citations: 2)
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Background  Patient-specific preoperative planning in complex congenital heart disease may be greatly facilitated by virtual cardiotomy. Surgeons can perform an unlimited number of surgical incisions on a virtual 3-D reconstruction to evaluate the feasibility of different surgical strategies. Objective  To quantitatively evaluate the quality of the underlying imaging data and the accuracy of the corresponding segmentation, and to qualitatively evaluate the feasibility of virtual cardiotomy. Materials and methods  A whole-heart MRI sequence was applied in 42 children with congenital heart disease (age 3 ± 3 years, weight 13 ± 9 kg, heart rate 96 ± 21 bpm). Image quality was graded 1–4 (diagnostic image quality ≥2) by two independent blinded observers. In patients with diagnostic image quality the segmentation quality was also graded 1–4 (4 no discrepancies, 1 misleading error). Results  The average image quality score was 2.7 – sufficient for virtual reconstruction in 35 of 38 patients (92%) older than 1 month. Segmentation time was 59 ± 10 min (average quality score 3.5). Virtual cardiotomy was performed in 19 patients. Conclusion  Accurate virtual reconstructions of patient-specific cardiac anatomy can be produced in less than 1 h from 3-D MRI. The presented work thus introduces a new, clinically feasible noninvasive technique for improved preoperative planning in complex cases of congenital heart disease.
Journal: Pediatric Radiology - PEDIAT RADIOL , vol. 38, no. 12, pp. 1314-1322, 2008
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    • ... (i.e., a minimum number of cases and minimally acceptable outcomes required during the first 2 years of practice prior to becoming a candidate for certification), increased use of simulation (development of cardiopulmonary bypass simulators, development of animal heart preparation for ‘‘in vivo’’ practice), and integration of virtual surgery (based on three-dimensional MRI models, for example) into teaching of complex procedures [10]...

    Emile A. Bacha. The Training of Congenital Heart Surgeons

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