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Yue J, Li M, Wu Q, Li P, Liang C, Chen J, Li P, Guo J, Dou W, Guo C, Gao J. Is it feasible to measure pulmonary vein data using volume rendering images? Acta Radiol 2023; 64:1018-1027. [PMID: 35722668 DOI: 10.1177/02841851221106591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Pulmonary vein (PV) data are commonly measured on multiplanar image reformation (MPR) images and volume rendering (VR) images. PURPOSE To compared and analyze the advantages and disadvantages of PV data based on VR images and MPR images. MATERIAL AND METHODS A total of 94 patients with atrial fibrillation (AF) with imaging data were included in the study. The respective image postprocessing time and the three surgical interventionists' preferences for the two images were recorded. A paired t-test or chi-square test was used to compare their difference, and P < 0.05 was considered statistically significant. RESULTS There was no statistically significant difference between the data values including the maximal and minimal ostial diameters of the left superior PV (LSPV), the left inferior PV (LIPV), the right superior PV (RSPV), and the right inferior PV (RIPV) obtained by VR and MPR images (P > 0.05). Yet, the mean postprocessing time of VR images (15.10 ± 3.05 min) was shorter compared to MPR images (16.54 ± 2.60 min) (t = 22.84, P < 0.05). All three surgical interventionists preferred VR images (accounted for 85.1%, 86.2%, and 84.0%, respectively), and there was no statistical difference in the degree of image preference among the three (chi-square = 0.596, P = 0.963). CONCLUSION PV data measurement could be performed on both VR and MRP images; however, the data on VR images were more intuitive and more accessible for interventional surgeons.
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Affiliation(s)
- Junyan Yue
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, PR China
- Department of Radiology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
- Heart Center, 159367The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Meixia Li
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, PR China
| | - Qingwu Wu
- Department of Radiology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Peicheng Li
- Electrophysiology Laboratory, 159367The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Changhua Liang
- Department of Radiology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Jie Chen
- Department of Radiology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Peiheng Li
- Department of Radiology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Junxia Guo
- Internal Medicine-Cardiovascular Department, 159367The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Wenguang Dou
- Department of Radiology, the First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Changlei Guo
- Internal Medicine-Cardiovascular Department, 159367The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan Province, PR China
| | - Jianbo Gao
- Department of Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, PR China
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The Left Atrio-Vertebral Ratio: a new simple means for assessing left atrial enlargement on Computed Tomography. Eur Radiol 2017; 28:1310-1317. [PMID: 28956130 DOI: 10.1007/s00330-017-5041-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 08/12/2017] [Accepted: 08/17/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The purpose of this study is to describe a new method to quickly estimate left atrial enlargement (LAE) on Computed Tomography. METHODS Left atrial (LA) volume was assessed with a 3D-threshold Hounsfield unit detection technique, including left atrial appendage and excluding pulmonary venous confluence, in 201 patients with ECG-gated 128-slice dual-source CT and indexed to body surface area. LA and vertebral axial diameter and area were measured at the bottom level of the right inferior pulmonary vein ostium. Ratio of LA diameter and surface on vertebra (LAVD and LAVA) were compared to LA volume. In accordance with the literature, a cutoff value of 78 ml/m2 was chosen for maximal normal LA volume. RESULTS 18% of LA was enlarged. The best cutoff values for LAE assessment were 2.5 for LAVD (AUC: 0.65; 95% CI: 0.58-0.73; sensitivity: 57%; specificity: 71%), and 3 for LAVA (AUC: 0.78; 95% CI: 0.72-0.84; sensitivity: 67%; specificity: 79%), with higher accuracy for LAVA (P=0.015). Inter-observer and intra-observer variability were either good or excellent for LAVD and LAVA (respective intraclass coefficients: 0.792 and 0.910; 0.912 and 0.937). CONCLUSION A left atrium area superior to three times the vertebral area indicates LAE with high specificity. KEY POINTS • Left atrial enlargement is a frequent condition associated with poor cardiac outcome. • Left atrial enlargement is highly time-consuming to diagnose on CT. • The left atrio-vertebral ratio quickly assesses left atrial enlargement. • A left atrial area > three times vertebral area is highly specific.
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