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• Clinical Article •
Correlation of imaging features and histop athoiogy in postpartum placental accrete
YAN Zhi-ping  KUANG Fei  SU Su-lian  LUO Wan-neng  ZHENG Shun-rong  ZHOU Zi-jun 

DOI:10.3969/j.issn.1674-8034.2015.06.011.


[Abstract] Objective: To investigate the features and diagnostic value of MRI and CT in postpartum placenta accreta(PA).Materials and Methods: Fourteen cases PA comfirmed clinically or pathologically were retrospectively analyzed (aged 24—39 years old, with an average of 30.6±2.5 years old). Ten cases were examined by MRI scans, four cases by conventional and contrast-enhanced CT scans, their imaging appearances were analysed.Results: Fourteen cases were correctly diagnosed with MRI and CT. Uterus enlarged in various degrees, the mixed signal intensity mass was showed in it. The integrity of endometrium and junctional zone of myometrium was destructed. Placentas of shorter gestational age appeared to be a mixed simple mass, the longer ones to be lobulated structure distinctively. Compared with the signal intensity of the outer layer of the myometrium, the signal intensity of implanted placenta showed isointense or hypointense and its boundary with uterus was not clear on T1WI. On T2WI, it showed significantly mixed hyperintense, and spread strip and punctate low signal shadows. The lesions invaded myometrium, and made the myometrium thinning locally. The lesions invaded close to perimetrium in 3 cases. By CT scan, they showed a ill-defined low density, by enhancement scan, placentas were heterogeneous enhancement significantly, appeared to be "petal shaped" , similar to enriched degree of myometrium. The necrotic area were not enhanced, depicted as "crack shaped" .Conclusion: Compared with CT, MRI can make correct diagnosis of PA and judge the general degree of placental invasion, as similar with pathologic types. It is a kind of auxiliary diagnostic tool ideally.
[Keywords] Postpartum period；Placental accrete；Computed tomography；Magnetic resonance imaging

YAN Zhi-ping* Department of medical imaging, the 174th Hospital of PLA, Xia Men 361003, China

KUANG Fei Department of medical imaging, the 174th Hospital of PLA, Xia Men 361003, China

SU Su-lian Department of medical imaging, the 174th Hospital of PLA, Xia Men 361003, China

LUO Wan-neng Department of medical imaging, the 174th Hospital of PLA, Xia Men 361003, China

ZHENG Shun-rong Department of medical imaging, the 174th Hospital of PLA, Xia Men 361003, China

ZHOU Zi-jun Department of medical imaging, the 174th Hospital of PLA, Xia Men 361003, China

*Correspondence to: Yan ZP, E-mail: yzhip65@126.com

Conflicts of interest   None.

Received  2015-02-25
Accepted  2015-05-04
DOI: 10.3969/j.issn.1674-8034.2015.06.011
DOI:10.3969/j.issn.1674-8034.2015.06.011.

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