Department of Neurological Sciences, Rush University Medical Center, 1725 West Harrison Street, Suite 1106, Chicago, IL, 60612, USA.
Department of Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center, Chicago, IL, USA.
Neurol Sci. 2022 Jul;43(7):4355-4361. doi: 10.1007/s10072-022-05992-2. Epub 2022 Mar 9.
Inattentional blindness refers to when an individual fails to recognize an event or object due to their awareness being engaged in a different task and has been described in radiology. The purpose of this study is to determine whether the sensitivity of detecting diffusion-weighted imaging (DWI) lesions in spontaneous intracerebral hemorrhage (sICH) is reduced due to inattentional blindness.
Using a prospective observational cohort, select sICH patients received an MRI scan within 72 h of admission. The scans were subject to an "official read" that occurred as part of the routine workflow. Separately, each scan underwent two "preliminary research reads" with task-specific instructions to detect DWI lesions. A "final research read" via three-party adjudication was used to calculate sensitivity and specificity for detecting these lesions. Board-certified neuroradiologists blinded to the clinical history of the patients reviewed all imaging.
Amongst 121 sICH participants with research MRI scans, 49.6% (n = 60) scans were noted to have DWI lesion on their "final research read." The "official read" detected these DWI lesions with a sensitivity of 65% (95% CI, 52-77%). In contrast, the "preliminary research read" sensitivity for readers 1 and 2 was 98% (CI 95%, 91 to 100%) and 87% (CI 95%, 75 to 94%), respectively. Both were significantly different (p < 0.05) from the sensitivity of the "official read."
Given the increased sensitivity with task-specific instructions, our results suggest that inattentional blindness may be leading to the decreased detection of DWI lesions in patients with concomitant sICH.
注意力盲视是指个体由于注意力被其他任务吸引而未能识别出某个事件或物体，这种现象在放射学中已有描述。本研究旨在确定注意力盲视是否会降低对自发性脑出血（sICH）患者弥散加权成像（DWI）病变的检测敏感性。
采用前瞻性观察队列研究，选择发病后 72 小时内行 MRI 扫描的 sICH 患者。扫描结果作为常规工作流程的一部分进行“正式读片”。此外，每个扫描结果都进行了两次带有特定任务指令的“初步研究读片”，以检测 DWI 病变。通过三方裁决进行“最终研究读片”，计算检测这些病变的敏感性和特异性。经过 board-certified 神经放射科医师对患者的临床病史进行盲法评估，对所有影像学结果进行了审查。
在 121 例接受研究性 MRI 扫描的 sICH 患者中，有 49.6%（n=60）的扫描在“最终研究读片”中发现有 DWI 病变。“正式读片”检测到这些 DWI 病变的敏感性为 65%（95%CI，52-77%）。相比之下，读者 1 和 2 的“初步研究读片”敏感性分别为 98%（95%CI，91-100%）和 87%（95%CI，75-94%），均显著高于“正式读片”的敏感性（均 p<0.05）。
鉴于特定任务指令下敏感性增加，我们的结果表明，在同时患有 sICH 的患者中，注意力盲视可能导致 DWI 病变的检测敏感性降低。
