DIAGNOSTIC VALUE OF MAGNETIC RESONANCE DWI AND FLAIR SEQUENCES FOR EARLY DIAGNOSIS OF ACUTE CEREBRAL INFARCTION

Daha Osman Heile, Guangyao Wu*, Anu John, Balqisa Osman Heile

ABSTRACT

Objective To analyze the value of diffusion-weighted magnetic resonance imaging (DWI) and fluid attenuated inversion recovery (FLAIR) for the early diagnosis of acute cerebral infarction. For the better diagnosis of the disease in the future, to provide guidance for treatment. Methods A retrospective analysis method was used to include 80 patients with acute cerebral infarction treated in the author's hospital from February 2016 to February 2018. All of the patients were in compliance with the relevant conditions of the study and were divided into hyperacute and acute phases. Subacute patients. Magnetic resonance DWI and FLAIR sequence scans were performed. The number and distribution of lesions were recorded; the detection of T1WI, T2WI, FLAIR, and DWI were recorded; and the imaging findings of T1WI, T2WI, FLAIR, and DWI in the superacute, acute, and subacute patients were compared; Standardized treatment was performed, and the independent living ability index (BI) score and neurological deficit score (NIHSS) score were compared before and after treatment. Results A total of 97 lesions were detected in 180 patients, including 82 new lesions, including 28 lesions in the brainstem, 20 lesions in the brain lobe, 13 lesions in the basal ganglia region, and 11 lesions in the cerebellum, 10 The lesions are in the center of the semiovale. The T1WI, T2WI, FLAIR, and DWI were detected as 70.00%, 67.50%, 81.25%, and 100.00%, respectively, P<0.05. 2 Subacute patients with T1WI, T2WI, FLAIR, and DWI showed similar signs of abnormal increase. In the acute phase, some patients had abnormal signals on T1WI and T2WI, and there were more abnormal signals on FLAIR. DWI had high signal and signs. Symptoms corresponded; in the super-acute phase, the signals on T1WI and T2WI were normal, and the FLAIR signal was abnormally increased. DWI was significantly increased. 3 Compared with b=1000s/mm2, the lesion image obtained by b=1200s/mm2 in DWI imaging is clearer, and the range is larger. The diffuse omnidirectional lesions are more unidirectionally cleaned and have more advantages in white matter lesions. 4 Image analysis showed that DWI showed high signal and was consistent with symptoms and signs. 5 After treatment, NIHSS scores decreased, and BI scores increased. P<0.05 Conclusion DWI technique is more advantageous in the early diagnosis of acute cerebral infarction, especially in hyperacute cerebral infarction with high sensitivity and can guide treatment.

Keywords: Magnetic resonance; FLAIR; DWI; Acute cerebral infarction; Early diagnosis.