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Cadaveric Specimen Study of Prostate Microvasculature: Implications for Arterial Embolization
Ricardo D Garcia-Monaco1, Lucas G Garategui2, Matias V Onorati2
1Vascular and Interventional Radiology Department, Hospital Italiano de Buenos Aires, JD Peron 4190, Ciudad de Buenos Aires C1181ACH, Argentina.
Journal of Vascular and Interventional Radiology : JVIR
|August 3, 2019
Summary
This study details prostate microvasculature anatomy in cadavers, identifying three arterial distributions: internodal, perinodal, and intranodal. These findings may inform prostate artery embolization procedures.
Area of Science:
- Urology
- Anatomy
- Vascular Biology
Background:
- Prostatic microvasculature plays a critical role in benign prostatic hyperplasia (BPH).
- Understanding intraprostatic arterial anatomy is essential for targeted therapies like prostate artery embolization (PAE).
Purpose of the Study:
- To anatomically describe the prostatic microvasculature using human cadaveric specimens.
- To quantitatively measure the diameters of intraprostatic arterial vessels.
Main Methods:
- Prostatic tissues from 18 adult males were processed histologically.
- Immunofluorescence staining (anti-CD34, anti-actin smooth muscle) identified endothelial and stromal components.
- Digital image analysis was used to measure intraprostatic arterial diameters.
Main Results:
- A single dominant prostate artery was identified in most specimens (77.8%).
- Three distinct intraprostatic arterial distributions were observed: internodal (IT), perinodal (PN), and intranodal (IN).
- Mean diameters were: IT arteries (317 μm), PN arteries (150 μm), and IN arteries (56 μm). No correlation was found between arterial diameters and prostate volume.
Conclusions:
- This cadaveric study provides a detailed anatomical description of the prostate's microvasculature.
- The identified arterial patterns and dimensions offer valuable insights for optimizing prostate artery embolization techniques.
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