The value of the apparent diffusion coefficient value in the Liver Imaging Reporting and Data System (LI-RADS) version 2018.

IF 0.9 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Polish Journal of Radiology Pub Date : 2022-01-17 eCollection Date: 2022-01-01 DOI:10.5114/pjr.2022.113193

Gehad Ahmad Saleh, Ahmed Abdel Khalek Abdel Razek, Lamiaa Galal El-Serougy, Walaa Shabana, Rihame Abd El-Wahab

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引用次数: 3

Abstract

Purpose: To assess role of the apparent diffusion coefficient (ADC) in the Liver Imaging Reporting and Data System (LI-RADS) version 2018 for the prediction of hepatocellular carcinoma (HCC).

Material and methods: Retrospective analysis of 137 hepatic focal lesions in 108 patients at risk of HCC, who underwent magnetic resonance imaging of the liver. Hepatic focal lesions were classified according to LI-RADS-v2018, and ADC of hepatic lesions was calculated by 2 independent blinded reviewers.

Results: The mean ADC of LR-1 and LR-2 were 2.11 ± 0.47 and 2.08 ± 0.47 × 10^-3 mm²/s, LR-3 were 1.28 ± 0.12 and 1.36 ± 0.16 × 10^-3 mm²/s, LR-4, LR-5 and LR-TIV were 1.07 ± 0.08 and 1.08 ± 0.12 × 10^-3 mm²/s and LR-M were 1.02 ± 0.09 and 1.00 ± 0.09 × 10^-3 mm²/s by both observers, respectively. There was excellent agreement of both readings for LR-1 and LR-2 (r = 0.988), LR-3 (r = 0.965), LR-4, LR-5 and LR-TIV (r = 0.889) and LR-M (r = 0.883). There was excellent correlation between ADC and LI-RADS-v2018 (r = -0.849 and -0.846). The cut-off ADC used to differentiate LR-3 from LR-4, LR-5, and LR-TIV were ≤ 1.21 and ≤ 1.23 × 10^-3 mm²/s with AUC of 0.948 and 0.926.

Conclusions: Inclusion of ADC to LI-RADS-v2018 improves differentiation variable LI-RADS categories and can helps in the prediction of HCC.

Abstract Image

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肝成像报告和数据系统(LI-RADS) 2018版中表观扩散系数值的值。

目的:评估表观扩散系数(ADC)在肝脏影像学报告和数据系统(LI-RADS) 2018版中预测肝细胞癌(HCC)的作用。材料与方法:回顾性分析108例HCC高危患者137例肝局灶性病变，均行肝磁共振成像。根据li - rad -v2018对肝脏局灶性病变进行分类，由2名独立盲法评价者计算肝脏病变ADC。结果:LR-1和LR-2的平均ADC分别为2.11±0.47和2.08±0.47 × 10-3 mm2/s, LR-3分别为1.28±0.12和1.36±0.16 × 10-3 mm2/s, LR-4、LR-5和LR-TIV分别为1.07±0.08和1.08±0.12 × 10-3 mm2/s, LR-M分别为1.02±0.09和1.00±0.09 × 10-3 mm2/s。LR-1和LR-2 (r = 0.988)、LR-3 (r = 0.965)、LR-4、LR-5和LR-TIV (r = 0.889)和LR-M (r = 0.883)的读数均具有极好的一致性。ADC与LI-RADS-v2018之间存在极好的相关性(r = -0.849和-0.846)。用于区分LR-3与LR-4、LR-5和LR-TIV的截止ADC分别为≤1.21和≤1.23 × 10-3 mm2/s, AUC分别为0.948和0.926。结论:将ADC纳入LI-RADS-v2018可改善分化变量LI-RADS分类，有助于HCC的预测。

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

Polish Journal of Radiology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-

CiteScore

2.10

自引率

0.00%

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