Nonaka Haruki, Masuda Takanori, Yoneyama Masami, Tahara Masahiro, Okano Mio, Morikawa Yuko, Sanada Kazuya, Sato Tomoyasu
Department of Radiological Technology, Tsuchiya General Hospital, Nakajima-cho 3-30, Naka-ku, Hiroshima 730-8655, Japan.
Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, Kurashiki, Okayama, Japan.
Radiol Case Rep. 2022 Mar 2;17(5):1440-1444. doi: 10.1016/j.radcr.2022.01.083. eCollection 2022 May.
Kawasaki disease (KD) is described as a syndrome that causes both coronary and systemic artery aneurysms (SAAs). This report describes the pitfall for SAAs' evaluation when using electrocardiogram (ECG)-gated subtracted three-dimensional fast spin echo (3D FSE) sequence of magnetic resonance imaging in KD patients. A 12-year-old male was diagnosed with KD at 3 months of age. We acquired ECG-gated 3D FSE images in the diastole and systole phases with coronal sections. Subtraction was then performed from diastolic phase imaging to systolic phase imaging. A 15.5 mm right axillary artery aneurysm and an 8.0 mm left axillary artery aneurysm were identified with ECG-gated 3D FSE in the diastolic phase. However, we observed signal loss in the right axillary artery aneurysm when subtraction was performed to selectively detect arteries; further, the brachial artery was poorly detected. ECG-gated subtracted 3D FSE sequence of magnetic resonance imaging can compromise the image quality of both aneurysm and peripheral artery images when detecting SAAs.
川崎病（KD）被描述为一种会导致冠状动脉和系统性动脉动脉瘤（SAA）的综合征。本报告描述了在KD患者中使用磁共振成像的心电图（ECG）门控减影三维快速自旋回波（3D FSE）序列评估SAA时存在的陷阱。一名12岁男性在3个月大时被诊断为KD。我们在舒张期和收缩期采集了冠状面的ECG门控3D FSE图像。然后从舒张期图像减去收缩期图像进行减影。在舒张期通过ECG门控3D FSE发现一个15.5毫米的右腋动脉动脉瘤和一个8.0毫米的左腋动脉动脉瘤。然而，在进行减影以选择性检测动脉时，我们观察到右腋动脉动脉瘤信号丢失；此外，肱动脉检测不佳。在检测SAA时，磁共振成像的ECG门控减影3D FSE序列会损害动脉瘤和外周动脉图像的质量。
