磁敏感加权成像测量脑内血肿体积初步研究

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Abstract Objective: To investigate the efficacy of susceptibility weighted imaging(SWI) for measuring intracerebral hematoma volume. Methods: Seventy patients with intracerebral hemorrhage(ICH) were included in this research. The hematoma volume were measured on CT, conventional MRI and SWI, respectively. Standard hematoma volume was determined in hyperacute, acute phase on CT and subacute on T1WI. Compare the hematoma volume on SWI with CT or T1WI, except for chronic phase. Results: The detectable rate for ICH by SWI was 100%. Hematoma volume of 16 acute, 20 early subacute and 20 late subacute phase on SWI were larger than CT and T1WI counterparts and average difference rate were 192.55%, 101.66%, 82.73%, respectively. There were significant statistical difference among hematoma volume of different phases(Z=-3.516, -3.921, -3.920, P<0.05). A linear relationship defined by CT hematoma volume=0.6×SWI hematoma volume(Spearman’s correlation coefficient=0.964, P<0.001) was derived in acute phase. Conclusion: SWI is sensitive to intracerebral hematoma in different phases. However, SWI exists an overestimate tendency for hematoma volume, notably in acute phase. A simple mathematical conversion model has been developed: CT hematoma volume=0.6×SWI hematoma volume. This formula can be contribute to make clinical projects and monitor prognosis in an individual patient.

Key words： Cerebral hemorrhage Hematoma Magnetic resonace imaging

Received: 15 July 2015

PACS:	Ｒ743.34
	Ｒ445.2

Corresponding Authors: LIU Jun

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	Articles by authors
	YU Xiang1
	LIU Jun2
	XU Liang2
	SHI Yi-xing3

Cite this article:

YU Xiang1,LIU Jun2,XU Liang2, et al. Primary study for measuring intracerebral hematoma volume on SWI[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(2): 82-86.

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http://www.jccmi.com.cn/EN/ OR http://www.jccmi.com.cn/EN/Y2016/V27/I2/82

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