PMC9990796_01
Head magnetic resonance imaging and magnetic resonance angiography (MRA) on admission diffusion-weighted imaging and fluid-attenuated inversion recovery showing acute cerebral infarction in the medial right frontal lobe, MRA showing occlusion of the right anterior cerebral artery ( ) and T1-volume isotropic turbo spin-echo acquisition (T1-VISTA) showing an intramural hematoma with high signal intensity consistent with the occluded vessel ( ). Red arrows indicate the occluded right anterior cerebral artery. Red arrowhead indicates intramural hematoma. DWI ; diffusion weighted image, FLAIR ; fluid attenuated inversion recovery.
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T1-VISTA revealed an intramural hematoma (hyperintense intramural signal) that was consistent with the occluded artery [Figures 1 and 2a].
Follow-up of changes in head Magnetic resonance angiography (MRA) and T1-volume isotropic turbo spin-echo acquisition (T1-VISTA) We monitored the occluded artery ( ) and the intramural hematoma ( ) with MRA and T1-VISTA. Red arrows in all figures indicate the occluded artery. Red arrowheads in all figures indicate the intramural hematoma. T1-VISTA was repeated on the 10th day of illness, 1 month after the sport-related head injury (SRHI) and 3 months after the SRHI. (a) MRA and T1-VISTA on the 10th day of illness showing no vascular recanalization and no aneurysm formation. (b) Recanalization of occluded artery with no aneurysmal changes observed 1 month after the collision. (c) Reocclusion, aneurysm formation or any other morphological abnormality of the artery not observed 3 months after the SRHI. The intramural hematoma extended to the peripheral artery over time, but by 3 months after the SRHI, the size of the intramural hematoma had decreased (d).
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T1-VISTA revealed an intramural hematoma (hyperintense intramural signal) that was consistent with the occluded artery [Figures 1 and 2a]. T1-VISTA was repeated on the 10th illness day; it did not show recanalization of the occluded artery and no aneurysm had formed [Figure 2b]. T1-VISTA performed 1 month after the SRHI (i.e., on the 31st day of illness) showed recanalization of the occluded artery, but no aneurysmal changes were observed [Figure 2c]. It also showed that the size of the intramural hematoma had decreased [Figure 2d].