Evaluation of multislice computed tomographic perfusion imaging and computed tomographic angiography on traumatic cerebral infarction

• Published in: Chinese journal of traumatology Vol. 11; no. 3; pp. 186 - 189
• Main Author: 许方洪 陈伟建 杨运俊 段玉霞 付凤丽
• Format: Journal Article
• Language: English
• Published: China Elsevier B.V 01.06.2008; Department of Radiology, First Affiliated Hospital, Wenzhou Medical College, Wenzhou 325000, China
• Subjects: Adolescent; Adult; Brain Injuries - complications; Cerebral Angiography - methods; Cerebral infarction; Cerebral Infarction - diagnostic imaging; Cerebral Infarction - etiology; Child; Female; Humans; Male; Middle Aged; Tomography, X-ray computed; Tomography, X-Ray Computed - methods; Wounds and injuries; X射线计算; X断层摄影术; 脑梗死; Tomography, X-ray computed; Cerebral infarction; Wounds and injuries; Tomography,X-ray computed
• ISSN: 1008-1275
• DOI: 10.1016/S1008-1275(08)60039-5

Objective： To evaluate the application value of multislice computed tomographic perfusion imaging （MSCTPI） and multislice computed tomographic angiography （MSCTA） on traumatic cerebral infarction. Methods： MSCTA was performed on 10 patients who were initiailly diagnosed as traumatic cerebral infarction by normal conventional computed tomography （NCCT）, among whom, 3 patients were examined by MSCTPI simultaneously. Reconstructed images of the intracranial artery were made with techniques of maximum intensity projection （MIP） and volume rendering （VR） from MSCTA scanning data. Then the graph of function of four parameters, regional cerebral blood flow （rCBF）, regional cerebral blood volume （rCBV）, mean transit time （MTT）, and time to peak （TTP）, acquired by the perfusing analysis software was obtained. Results： Among the 10 patients with traumatic cerebral infarction, 6 showed complex type on NCCT, which depicted abnormality on MSCTA, and 4 showed simple type on NCCT, which had negative results on MSCTA. Among the 4 patients with abnormal great vessels, 2 suffered from stenosis or occlusion of the middle cerebral artery, 1 from spasm of the anterior cerebral artery, and 1 from spasm of the vertebral-basal artery. The image of MSCTPI of 1 patient with massive cerebral infarction on the right cerebral hemisphere confirmed by CT was smaller than those of the other patients, which showed occlusion of the ipsilateral middle cerebral artery on MSCTA, Among the 6 patients whose MSCTA showed no abnormality, 4 showed simple infarction and 2 showed complex infarction. The infarction focus of 5 patients occurred in the basal ganglia and 1 in the splenium of corpus callosum. Among the 2 cases of small cerebral infarction volume on NCCT, one was normal, the other showed hypoperfusion on MSCTPI and was normal on MSCTA. Conclusion： The combination of MSCTPI and MSCTA is very useful for evaluating the change of intracranial artery in ischemic regions and assessing the cerebral hemodynamic information of traumatic cerebral infarction.