Head and Neck Imaging

Diagnosis Value of Magnetic Resonance T2flair, DWI Sequence in Different Phases of Cerebral Hemorrhage*

Author:NAN Xiao-dong, ZHANG Jun, WU Lian-qiang, et al.

affiliation:Department of MR, The Affiliate Huanghe Sanmenxia Hospital of Henan University of Science and Technology, Sanmenxia 472000, Henan Province, China

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Abstract

Objective To study diagnosis value of Magnetic Resonance T2flair, DWI sequence in different phases of cerebral hemorrhage analyze characteristics of signal evolution, and to improve the understanding of its imaging findings. Methods In the 65 cases of cerebral hemorrhage proved by clinical diagnosis were retrospectively analyzed in MRI imaging. Results Among the 65 cases, 3 cases were super acute early (6h), T2flair is slightly low signal, DWI is low signa, no edema around, 7 cases were super acute late (6-24h), T2flair is slightly low signal, DWI is low signa, mild edema around. 8 cases were acute period (1-3d), T2flair is extremely low signal, DWI is extremely low signal, moderate edema around. Early subacute(4-7d) in 7 cases, T2flair is low signal, DWI is low signal, severe edema around. Mid subacute(8-15d) in 11 cases, T2flair and DWI is too, moderate edema around. Subacute late (16-30d) in 7 cases, T2flair and DWI is too, mild edema around. Chronic phase (1-2m) in 7 cases, T2flair and DWI is high signal, surrounded by black ring, no edema around the lesion. Residual cavity(more than 3m) in 15 cases, T2flair and DWI is low signal, can no edema around the lesion. Conclusion It has the characteristic of T2flair, DWI manifestation for different period cerebral hemorrhage, which is helpful for differential diagnosis and guiding clinical treatment.

【Keyword】Cerebral Hemorrhage; Signal; Magnetic Resonance Imaging

【Chart number】R722.15+1

【Document Identification Number】A

【DOI】 10.3969/j.issn.1672- 5131.2017.10.004