Change of Apparent Diffusion Coefficient Immediately after Recanalization through Intra-Arterial Revascularization Therapy in Acute Ischemic Stroke

대한영상의학회지

卷:74

Kyung-Pil Park¹  Min-Gyu Park¹  Young Soo Kim²  Chang Hyo Yoon³  Jieun Roh³  Jeong A Yeom³  Seung Kug Baik³ 

[1] Department of Neurology, Pusan National University Yangsan Hospital, Yangsan, Korea;

[2] Department of Neurosurgery, Pusan National University Yangsan Hospital, Yangsan, Korea;

[3] Department of Radiology, Pusan National University Yangsan Hospital, Yangsan, Korea;

关键词: magnetic resonance imaging;    mechanical thrombolysis;    stroke;    cerebral infarction;    reperfusion;   

DOI  :  https://doi.org/10.3348/jksr.2016.74.4.245

来源: DOAJ

【 摘 要 】

PurposeIntra-arterial revascularization therapy (IART) for acute ischemic stroke has become increasingly popular recently. However, early change in apparent diffusion coefficient (ADC) values after full recanalization in human stroke has not received much attention. The aim of this study was to evaluate ADC changes immediately after interventional full-recanalization in patients with acute ischemic stroke.Materials and MethodsADC values of 25 lesions from 18 acute ischemic stroke patients were recorded with both pre- and post-recanalization ADC maps. Measurement was done by placing region of interests over the representative images of the lesion. For analysis, lesions were divided into territorial infarction (TI) and watershed infarction (WI).ResultsMean ADC values of the overall 25 lesions before IART were 415.12 × 10-6 mm2/sec, and increased to 619.08 × 10-6 mm2/sec after the IART. Average relative ADC (rADC) value for 22 TI increased from 0.59 to 0.92 (p < 0.000), whereas, average rADC value for 3 WI did not change significantly.ConclusionThere was a conspicuous increase of ADC values immediately after full-recanalization in TI lesions. On the other hand, WI lesions did not show significant change in ADC values after recanalization.

【 授权许可】

Unknown