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Dual-phase Cone-beam Computed Tomography to See, Reach, and Treat Hepatocellular Carcinoma during Drug-eluting Beads Transarterial Chemo-embolization
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Semi-automatic prostatic artery detection using cone-beam CT during prostatic arterial embolization.

Dirk Schnapauff1, Andreas Maxeiner2, Gero Wieners1

  • 1Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Radiology, Berlin Institute of Health, Berlin, Germany.

Acta Radiologica (Stockholm, Sweden : 1987)
|December 13, 2019
PubMed
Summary
This summary is machine-generated.

Cone-beam computed tomography (CBCT) with semi-automatic software improves prostatic artery (PA) detection accuracy compared to digital subtraction angiography (DSA). This advanced imaging technique offers a more precise method for PA identification, potentially reducing radiation exposure during embolization procedures.

Keywords:
Cone-beam compute tomographydigital subtraction angiographyprostatic arterial embolization

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Area of Science:

  • Interventional Radiology
  • Medical Imaging
  • Vascular Anatomy

Background:

  • Prostatic artery embolization (PAE) is challenging due to prostatic artery (PA) anatomical variations.
  • PAE procedures are time-consuming and involve significant radiation exposure.

Purpose of the Study:

  • To assess the accuracy of PA detection using cone-beam computed tomography (CBCT) from the aortic bifurcation.
  • To compare CBCT accuracy with semi-automatic software against digital subtraction angiography (DSA) with internal iliac artery (IIA) injection.

Main Methods:

  • Retrospective analysis of 22 patients undergoing CBCT and DSA for PA detection.
  • Comparison of PA detection results from CBCT with semi-automatic software versus IIA DSA.
  • Measurement and comparison of radiation dose area product (DAP) between imaging modalities.

Main Results:

  • CBCT demonstrated significantly better PA classification compared to DSA (P=0.047).
  • IIA DSA failed to identify PAs in 18% (left) and 17% (right) of cases.
  • CBCT detected all PAs, with 59% showing truncation due to limited field of view; CBCT contributed only 6% to the total radiation dose, while DSA accounted for 84%.

Conclusions:

  • CBCT combined with semi-automatic software offers superior accuracy for PA detection over IIA DSA.
  • This imaging approach holds potential for reducing radiation dose in PAE procedures.