PDF(Pubmed)
Abstract：
UNASSIGNED: To evaluate the stability of unruptured intracranial aneurysm (UIA) with high-resolution magnetic resonance imaging of the vessel wall (HR-VWI).
UNASSIGNED: A total of 92 UIA patients were enrolled. After MRA, HR-VWI imaging, the reconstruction of volume rendering (VR) and maximum intensity projection (MIP) were performed to observe the location and size of aneurysms, AR value (ratio of aneurysm height to aneurysmal diameter), SR value (ratio of maximum tumor depth to proximal parent artery diameter), and signal intensity were measured.
UNASSIGNED: There were 7 aneurysms with UIA located in the anterior cerebral artery, 31 aneurysms with UIA in the middle cerebral artery, 1 aneurysm with UIA in the posterior cerebral artery, 18 aneurysms with UIA in the anterior communication, 5 aneurysms with UIA in the posterior communication, 34 aneurysms with UIA in the intracranial segment of the internal carotid artery and 3 aneurysms with UIA in the vertebral artery. Among them, 8 patients had more than two multiple aneurysms. The lesion size was 2-38mm (6.3 ± 5.09). There are 46 aneurysms with wall enhancement: the maximum SR value was 7.03 and the minimum 1.2, and the maximum AR value was 7.5 and the minimum 1.0. Fifty-five aneurysms showed no enhancement of the tumor wall. The maximum SR value was 4.55 and the minimum 0.58, and the maximum AR value was 4.0 and the minimum 0.6, respectively. Patients were divided into a stable group and an unstable group according to the aneurysm wall. The enhancement rate, SR value, and AR value in the stable aneurysm group were significantly lower than those in the unstable aneurysm group (P < 0.05).
UNASSIGNED: MRA and HR-VWI can objectively reflect the stability of aneurysms by judging the morphology, SR value, and signal enhancement of UIA, and can provide a certain basis for diagnosis and treatment, which has become routine examination.
UNASSIGNED: A total of 92 UIA patients were enrolled. After MRA, HR-VWI imaging, the reconstruction of volume rendering (VR) and maximum intensity projection (MIP) were performed to observe the location and size of aneurysms, AR value (ratio of aneurysm height to aneurysmal diameter), SR value (ratio of maximum tumor depth to proximal parent artery diameter), and signal intensity were measured.
UNASSIGNED: There were 7 aneurysms with UIA located in the anterior cerebral artery, 31 aneurysms with UIA in the middle cerebral artery, 1 aneurysm with UIA in the posterior cerebral artery, 18 aneurysms with UIA in the anterior communication, 5 aneurysms with UIA in the posterior communication, 34 aneurysms with UIA in the intracranial segment of the internal carotid artery and 3 aneurysms with UIA in the vertebral artery. Among them, 8 patients had more than two multiple aneurysms. The lesion size was 2-38mm (6.3 ± 5.09). There are 46 aneurysms with wall enhancement: the maximum SR value was 7.03 and the minimum 1.2, and the maximum AR value was 7.5 and the minimum 1.0. Fifty-five aneurysms showed no enhancement of the tumor wall. The maximum SR value was 4.55 and the minimum 0.58, and the maximum AR value was 4.0 and the minimum 0.6, respectively. Patients were divided into a stable group and an unstable group according to the aneurysm wall. The enhancement rate, SR value, and AR value in the stable aneurysm group were significantly lower than those in the unstable aneurysm group (P < 0.05).
UNASSIGNED: MRA and HR-VWI can objectively reflect the stability of aneurysms by judging the morphology, SR value, and signal enhancement of UIA, and can provide a certain basis for diagnosis and treatment, which has become routine examination.
摘要：
■用血管壁的高分辨率磁共振成像（HR-VWI）评估未破裂的颅内动脉瘤（UIA）的稳定性。
■共纳入92例UIA患者。MRA之后,HR-VWI成像,体再现(VR)和最大强度投影(MIP)重建,观察动脉瘤的位置和大小,AR值（动脉瘤高度与动脉瘤直径之比），SR值（最大肿瘤深度与近端亲本动脉直径之比），并测量信号强度。
■有7个位于大脑前动脉的UIA动脉瘤，大脑中动脉有UIA的31个动脉瘤，1个在大脑后动脉有UIA的动脉瘤，18个动脉瘤，前连通有UIA，5个动脉瘤与UIA在后交通，颈内动脉颅内段有UIA的动脉瘤34例，椎动脉有UIA的动脉瘤3例。其中,8例患者有两个以上的多发性动脉瘤。病灶大小2～38mm(6.3±5.09)。有46个动脉瘤的壁强化：最大SR值为7.03，最小1.2，最大AR值为7.5，最小1.0。55个动脉瘤显示肿瘤壁没有增强。最大SR值分别为4.55和最小0.58，最大AR值分别为4.0和最小0.6。根据动脉瘤壁将患者分为稳定组和不稳定组。增强率，SR值,稳定动脉瘤组的AR值明显低于不稳定动脉瘤组(P<0.05)。
■MRA和HR-VWI可以通过判断动脉瘤的形态来客观反映动脉瘤的稳定性，SR值,和UIA的信号增强，并可以为诊断和治疗提供一定的依据，这已经成为常规检查。
■共纳入92例UIA患者。MRA之后,HR-VWI成像,体再现(VR)和最大强度投影(MIP)重建,观察动脉瘤的位置和大小,AR值（动脉瘤高度与动脉瘤直径之比），SR值（最大肿瘤深度与近端亲本动脉直径之比），并测量信号强度。
■有7个位于大脑前动脉的UIA动脉瘤，大脑中动脉有UIA的31个动脉瘤，1个在大脑后动脉有UIA的动脉瘤，18个动脉瘤，前连通有UIA，5个动脉瘤与UIA在后交通，颈内动脉颅内段有UIA的动脉瘤34例，椎动脉有UIA的动脉瘤3例。其中,8例患者有两个以上的多发性动脉瘤。病灶大小2～38mm(6.3±5.09)。有46个动脉瘤的壁强化：最大SR值为7.03，最小1.2，最大AR值为7.5，最小1.0。55个动脉瘤显示肿瘤壁没有增强。最大SR值分别为4.55和最小0.58，最大AR值分别为4.0和最小0.6。根据动脉瘤壁将患者分为稳定组和不稳定组。增强率，SR值,稳定动脉瘤组的AR值明显低于不稳定动脉瘤组(P<0.05)。
■MRA和HR-VWI可以通过判断动脉瘤的形态来客观反映动脉瘤的稳定性，SR值,和UIA的信号增强，并可以为诊断和治疗提供一定的依据，这已经成为常规检查。
