Prof. Chun-Chih Lin Profile

Prof. Chun-Chih Lin

at Nanhua University

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Proceedings Article | 8 December 2015 Paper

Stored-fluorography mode reduces radiation dose during cardiac catheterization measured with OSLD dosimeter

Chien-Yi Ting, Zhih-Cherng Chen, Kuo-Ting Tang, Wei-Chung Liu, Chun-Chih Lin, Hsin-Ell Wang

Proceedings Volume 9875, 98750V (2015) https://doi.org/10.1117/12.2228616

KEYWORDS: Angiography, Arteries, Cardiac catheterization, Skin, Radiation effects, Surgery, Optical simulations, Fluoroscopy, Image resolution, Heart

Read Abstract +

Coronary angiogram is an imperative tool for diagnosis of coronary artery diseases, in which cine-angiography is a commonly used method. Although the angiography proceeds under radiation, the potential risk of radiation exposure for both the patients and the operators was seldom noticed. In this study, the absorbed radiation dose in stored-fluorography mode was compared with that in cine-angiography mode by using optically simulated luminescent dosimeters to realize their effects on radiation dose. Patients received coronary angiogram via radial artery approach were randomized into the stored-fluorography group (N=30) or the cine-angiography group (N=30). The excluded criteria were: 1. women at pregnancy or on breast feeding, 2. chronic kidney diseases with glomerular filtration rate less than 60 mL/min. During the coronary angiogram, absorbed dose of the patients and the operator radiation exposure was measured with optically simulated luminescent dosimeter (OSLD). The absorbed dose of the patients in the stored-fluorography group (3.13±0.25 mGy) was apparently lower than that in the cine-angiography group (65.57±5.37 mGy; P<0.001). For the operator, a statistical difference (P<0.001) was also found between the stored-fluorography group (0.09163 μGy) and the cine-angiography (0.6519μGy). Compared with traditional cine-angiography mode, the stored-fluorography mode can apparently reduce radiation exposure of the patients and the operator in coronary angiogram.

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