TY - JOUR
T1 - Magnetic resonance angiography false negative aneurysm presenting with subarachnoid hemorrhage
T2 - A case report
AU - Yanagawa, Y.
AU - Nagai, H.
AU - Fujita, K.
AU - Iihara, K.
AU - Uemura, Y.
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - We report a case of a ruptured cerebral aneurysm in spite of receiving MR angiography (MRA) 6 months previously. A 59-year-old man lost consciousness and a head CT revealed a subarachnoid hemorrhage (SAH). Cerebral angiography exposed an aneurysm, 9 mm in diameter, located at the anterior communicating artery. Aneurysmal neck clipping was performed and the postoperative course was uneventful. The patient had received a brain checkup with MRI and MRA due to hypertension experienced 2 years previously, and the MRA study for further examination of amnesia 6 months before the SAH was discovered. A the time, the MRA was negative but retrospective analysis of the source image of the MRA exhibited the aneurysm. To increase the accuracy of diagnosis of cerebral aneurysms using MRI devices, not only must the MRA and the MR images be evaluated, but the source images of the MRA must also be carefully evaluated. If possible, three-dimensional CT angiography should also be used to detect aneurysms.
AB - We report a case of a ruptured cerebral aneurysm in spite of receiving MR angiography (MRA) 6 months previously. A 59-year-old man lost consciousness and a head CT revealed a subarachnoid hemorrhage (SAH). Cerebral angiography exposed an aneurysm, 9 mm in diameter, located at the anterior communicating artery. Aneurysmal neck clipping was performed and the postoperative course was uneventful. The patient had received a brain checkup with MRI and MRA due to hypertension experienced 2 years previously, and the MRA study for further examination of amnesia 6 months before the SAH was discovered. A the time, the MRA was negative but retrospective analysis of the source image of the MRA exhibited the aneurysm. To increase the accuracy of diagnosis of cerebral aneurysms using MRI devices, not only must the MRA and the MR images be evaluated, but the source images of the MRA must also be carefully evaluated. If possible, three-dimensional CT angiography should also be used to detect aneurysms.
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U2 - 10.7887/jcns.6.711
DO - 10.7887/jcns.6.711
M3 - Article
AN - SCOPUS:0030782108
SN - 0917-950X
VL - 6
SP - 711
EP - 715
JO - Japanese Journal of Neurosurgery
JF - Japanese Journal of Neurosurgery
IS - 10
ER -