Usefulness of Isosurface Geometric Measurement on Volume-Rendered Images for Quantitative Measurements of Complex Cardiac Anatomical Features

IF 1.3 4区医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS

Journal of Cardiac Surgery Pub Date : 2025-05-13 DOI:10.1155/jocs/5193639

Kenichi Kamiya, Yukihiro Nagatani, Jun Matsubayashi, Ryo Uemura, Tatsuya Oki, Yuji Matsubayashi, Shinya Terada, Piers Vigers, Susumu Nakata, Yoshiyuki Watanabe, Tomoaki Suzuki

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引用次数: 0

Abstract

Background: Measuring living heart anatomy using three-dimensional (3D) images remains challenging. To address this, a method called isosurface measurement on volume-rendered images (IMVR) has been developed. This study aims to validate IMVR in quantitative measurement by comparing it with curved planar reformation (CPR).

Methods: Five 3D-printed human cardiac models created from computed tomography (CT) images were optically scanned, and selected features were measured for reference. The models were CT-scanned, and the datasets were processed for IMVR and CPR measurements. Overall, 157 anatomical features (105 in the aortic root, 52 in the coronary artery) were measured three times by two observers for each method, and the agreement with the reference values was assessed using the Bland–Altman analysis.

Results: In the aortic root measurement, the lower and upper 95% limits of agreement (LOAs, mm) for IMVR were (−3.1, 2.4) and (−1.3, 0.9), whereas those for CPR were (−5.9, 5.2) and (−5.9, 6.3). In the coronary artery measurement, the LOAs for IMVR were (−2.6, 2.2) and (−1.2, 0.8), while those for CPR were (−9.2, 8.6) and (−9.5, 8.5). For both methods, the intraclass coefficient indicated high intra- and interobserver reliability.

Conclusion: IMVR demonstrated greater precision than CPR and facilitated 3D measurements of complex cardiovascular features.

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体积渲染图像等面几何测量在复杂心脏解剖特征定量测量中的应用

背景：使用三维（3D）图像测量活体心脏解剖仍然具有挑战性。为了解决这个问题，已经开发了一种称为体渲染图像（IMVR）的等值面测量方法。本研究旨在通过与曲面重构（CPR）的比较，验证IMVR在定量测量中的有效性。方法：利用计算机断层扫描（CT）图像建立5个3d打印人体心脏模型，进行光学扫描，并测量选定的特征以供参考。对模型进行ct扫描，并对数据集进行IMVR和CPR测量处理。总的来说，157个解剖特征（105个在主动脉根部，52个在冠状动脉）由两名观察员对每种方法进行了三次测量，并使用Bland-Altman分析评估与参考值的一致性。结果：在主动脉根部测量中，IMVR的95%一致性下限（LOAs, mm）为（−3.1,2.4）和（−1.3,0.9），而CPR的95%一致性下限为（−5.9,5.2）和（−5.9,6.3）。在冠状动脉测量中，IMVR的loa分别为（−2.6,2.2）和（−1.2,0.8），而CPR的loa分别为（−9.2,8.6）和（−9.5,8.5）。对于这两种方法，类内系数表明高的内部和观察者之间的信度。结论：IMVR比心肺复苏术更精确，便于复杂心血管特征的三维测量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Cardiac Surgery 医学-外科

CiteScore

2.90

自引率

12.50%

发文量

976

审稿时长

3-8 weeks

期刊介绍： Journal of Cardiac Surgery (JCS) is a peer-reviewed journal devoted to contemporary surgical treatment of cardiac disease. Renown for its detailed "how to" methods, JCS''s well-illustrated, concise technical articles, critical reviews and commentaries are highly valued by dedicated readers worldwide. With Editor-in-Chief Harold Lazar, MD and an internationally prominent editorial board, JCS continues its 20-year history as an important professional resource. Editorial coverage includes biologic support, mechanical cardiac assist and/or replacement and surgical techniques, and features current material on topics such as OPCAB surgery, stented and stentless valves, endovascular stent placement, atrial fibrillation, transplantation, percutaneous valve repair/replacement, left ventricular restoration surgery, immunobiology, and bridges to transplant and recovery. In addition, special sections (Images in Cardiac Surgery, Cardiac Regeneration) and historical reviews stimulate reader interest. The journal also routinely publishes proceedings of important international symposia in a timely manner.