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MRI features after prostatic artery embolization for the treatment of medium- and large-volume benign hyperplasia

  • ABDOMINAL RADIOLOGY
  • Published:
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Abstract

Purpose

To assess magnetic resonance imaging (MRI) features after prostatic artery embolization (PAE) for the treatment of medium- and large-volume benign prostatic hyperplasia and to correlate prostate volume with clinical indexes.

Methods

We retrospectively evaluated 28 patients who underwent PAE. MRI examinations of the prostate were performed to evaluate signal intensity changes and the characteristics of infarcted areas. Prostate volume and the apparent diffusion coefficient (ADC) were measured at an average of 10 days post-PAE and at 1, 3, 6, and 12 months post-PAE. Some clinical indexes were evaluated before and 12 months after PAE. The paired t test, ANOVA, and multiple linear correlation analyses were performed by using the statistical software, SPSS.

Results

All patients experienced prostatic infarction. The prostate volume decreased continuously (p < 0.05). The ADC values before and after 1, 3, 6, or 12 months of embolization (b = 1000 and 2000 s/mm2) were statistically significantly different. The ADC values (b = 3000 s/mm2) were also statistically significantly different before and at each interval time after embolization (p < 0.05). Prostate volume changes correlated significantly with patient age and post-void residual urine volume (p < 0.05).

Conclusions

MRI can be used for assessing changes in signal intensity and ADC values of infarction as well as the volume of the prostate after PAE. After PAE, ultrahigh b value diffusion-weighted imaging (DWI) can show early infarction better than lower b value DWI.

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Funding

This study has received funding by the Health Care Special Project (14BJZ02) and National Natural Science Foundation of China (No. 81771785).

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Author notes

  1. Hongtao Zhang and Yanguang Shen contributed equally to this study.

Authors and Affiliations

  1. Department of Radiology, Chinese PLA General Hospital, Fuxing Road 28, Box 100853, Beijing, China

    Hongtao Zhang, Yanguang Shen, Jingjing Pan, Haiyi Wang, Yan Zhong, Yingwei Wang & Huiyi Ye

  2. Department of Radiology, 307 Hospital, PLA, Dongda Street 8, Box 100071, Beijing, China

    Hongtao Zhang

  3. Department of Radiology, General Hospital of the PLA Rocket Force, Xinjiekou Street 16, Box 100088, Beijing, China

    Jingjing Pan

Authors
  1. Hongtao Zhang
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  2. Yanguang Shen
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  4. Haiyi Wang
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  5. Yan Zhong
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Correspondence to Huiyi Ye.

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The authors declare that they have no conflict of interest.

Ethical standards

This article does not contain any studies with human participants performed by any of the authors. Each author has participated sufficiently in any submission to take public responsibility for its content. All procedures were performed in accordance with ethical standards of the Declaration of Helsinki. The study was approved by the hospital ethical committee. Written informed consent was obtained from each patient.

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Zhang, H., Shen, Y., Pan, J. et al. MRI features after prostatic artery embolization for the treatment of medium- and large-volume benign hyperplasia. Radiol med 123, 727–734 (2018). https://doi.org/10.1007/s11547-018-0904-5

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  • DOI: https://doi.org/10.1007/s11547-018-0904-5

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