Branching patterns of the male internal iliac artery: imaging findings |
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Authors: | Tiago Bilhim Diogo Casal Andrea Furtado Diogo Pais Jo?o Erse Goyri O��Neill Jo?o Martins Pisco |
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Institution: | 1. Departamento de Anatomia, Faculdade de Ci??ncias M??dicas, Universidade Nova de Lisboa, Lisbon, Portugal 4. Interventional Radiology, Saint Louis Hospital, Rua Luz Soriano, no. 182, 1200-249, Lisbon, Portugal 2. Funda??o para a Ci??ncia e Tecnologia (FCT), Lisbon, Portugal 3. Departamento de Radiologia, Faculdade de Ci??ncias M??dicas, Universidade Nova de Lisboa (UNL), Lisbon, Portugal
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Abstract: | The aim of this study was to establish the imaging findings of the main branching patterns of the male internal iliac arteries,
using different imaging modalities (angio MR, angio CT and digital angiography). Twenty-one males (mean age 73.2 years) underwent
imaging evaluation with angio MR, angio CT and digital angiography to define the internal iliac artery anatomy before selective
embolization of the pelvic arteries. All three modalities were used in 3 patients, angio MR and digital angiography in 17
patients, angio CT and digital angiography in 6 patients and only angio CT in 1 patient. Internal iliac arteries were classified
into four groups using the Yamaki classification (modified from the Adachi’s classification). Twenty-six pelvic sides were
classified as Group A (61.9%), 13 as Group B (31%) and 3 as Group C (7.1%) with no cases of Group D found. Angio MR, angio
CT and digital angiography were able to detect most branches of the internal iliac artery. Group A was the most frequent internal
iliac artery branching pattern. Angio CT showed better detailed anatomy than angio MR and digital angiography was considered
the gold-standard. Non-invasive vascular imaging with angio MR or angio CT is essential before invasive interventions, allowing
better planning of the procedure. |
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