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MRI-PWI was used to evaluate cerebral blood perfusion and collateral circulation in symptomatic stroke patients
HAO Lu  CHEN Huan  WANG Hong 

Cite this article as: Hao L, Chen H, Wang H. MRI-PWI was used to evaluate cerebral blood perfusion and collateral circulation in symptomatic stroke patients. Chin J Magn Reson Imaging, 2020, 11(10): 904-907. DOI:10.12015/issn.1674-8034.2020.10.014.


[Abstract] Objective: To study the clinical value of MRI perfusion imaging in the evaluation of cerebral ischemia perfusion and collateral circulation in symptomatic stroke patients.Materials and Methods: The total of 80 patients with symptomatic stroke were selected from August 2018 to August 2019. All the patients with negative DWI imaging results underwent conventional MRI, and then underwent MRI-PWI. The reginal cerebral blood volume (rCBV), reginal cerebral blood flow (rCBF), mean transit time (MTT), time to peak (TTP) values and time-density curves of the affected and healthy sides were measured and analyzed.Results: In 29 cases of DWI results can be negative patients, 25 cases of brain exists abnormal perfusion areas, including Ⅰ phase 1 8 cases, 6 patients with Ⅰ phase 2, Ⅱ phase 1 in 5 cases, Ⅱ phase 2 and 6 cases of ischemia area compared with the contralateral, rCBV, rCBF, determined by MTT, TTP differences statistically difference (P<0.05) in Ⅰ phase 2 and Ⅱ phase 1 establish good collateral vessels.Conclusions: PWI has a higher detection rate in the early hypoperfusion area of brain tissue and can evaluate the status of peripheral microvessels, providing a strong diagnostic basis for patients with early ischemic stroke.
[Keywords] magnetic resonance imaging；perfusion weighted imaging；symptomatic stroke；cerebral perfusion；collateral circulation

HAO Lu Department of Imaging, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, China

CHEN Huan Department of Imaging, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, China

WANG Hong* Department of Imaging, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, China

*Correspondence to: Wang H, E-mail: wangh-xj@163.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This work was part of National Natural Science Foundation of China No. 81860301 Special Scientific Research Project of Healthy Young Medical Science Talents of Xinjiang Uygur Autonomous Region No. WJWY-202008
Received  2020-04-04
Accepted  2020-06-12
DOI: 10.12015/issn.1674-8034.2020.10.014
Cite this article as: Hao L, Chen H, Wang H. MRI-PWI was used to evaluate cerebral blood perfusion and collateral circulation in symptomatic stroke patients. Chin J Magn Reson Imaging, 2020, 11(10): 904-907. DOI:10.12015/issn.1674-8034.2020.10.014.

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