Department of Radiology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570000, Hainan, China.
Department of Radiology, Hainan Danzhou People's Hospital, Danzhou 571700, Hainan, China.
Contrast Media Mol Imaging. 2022 Jul 12;2022:6495568. doi: 10.1155/2022/6495568. eCollection 2022.
This study aimed to investigate the differential diagnosis value of routine magnetic resonance imaging (MRI) and magnetic resonance diffusion-weighted imaging (DWI) in hyperacute intracranial hemorrhage (HICH) and hyperacute cerebral infarction (HCI). Fifty-five patients with HICH were set as group A, and 55 patients with HCI were selected as group B. All the patients underwent routine MRI and DWI examinations. The morphological distribution and signal characteristics (low, high, or mixed) of the lesions in the two groups were recorded. The diagnostic accuracy, sensitivity, and specificity of routine MRI and DWI were compared for distinguishing HICH and HCI. The results suggested that the lesions in patients with HICH were mainly manifested as mixed signals (40 cases), while those in patients with HCI showed high signals (48 cases). HICH occurred in the basal ganglia in 44 cases, in the brain stem in 6 cases, in the cerebellum in 4 cases, in the cerebral cortex in 0 cases, and in the corpus callosum in 1 case. HCI occurred in the basal ganglia area, brain stem, cerebellum, cerebral cortex, and corpus callosum in 5, 3, 35, 12, and 0 cases, respectively. The diagnostic accuracy, specificity, and sensitivity of DWI for HICH and HCI were significantly higher than those of routine MRI ( < 0.05). It was indicated that compared with routine MRI, DWI was more effective in the diagnosis of HICH and HCI, with clearer and more accurate images and better diagnostic performance.
本研究旨在探讨常规磁共振成像（MRI）和磁共振弥散加权成像（DWI）在超急性颅内出血（HICH）和超急性脑梗死（HCI）中的鉴别诊断价值。将 55 例 HICH 患者设为 A 组，55 例 HCI 患者设为 B 组。所有患者均行常规 MRI 和 DWI 检查，记录两组患者病灶的形态分布和信号特征（低、高或混杂）。比较常规 MRI 和 DWI 鉴别 HICH 和 HCI 的诊断准确性、灵敏度和特异度。结果表明，HICH 患者病灶主要表现为混杂信号（40 例），HCI 患者病灶表现为高信号（48 例）。HICH 发生于基底节 44 例，脑干 6 例，小脑 4 例，大脑皮质 0 例，胼胝体 1 例。HCI 发生于基底节区、脑干、小脑、大脑皮质和胼胝体分别为 5、3、35、12 和 0 例。DWI 对 HICH 和 HCI 的诊断准确性、特异性和灵敏度均明显高于常规 MRI（<0.05）。表明与常规 MRI 相比，DWI 对 HICH 和 HCI 的诊断更有效，图像更清晰、准确，诊断效能更好。
