Combined Static and Dynamic Computed Tomography Angiography of Peripheral Artery Occlusive Disease: Comparison with Magnetic Resonance Angiography

Journal Article · Wed Aug 15 04:00:00 EDT 2018 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S00270-018-1911-6· OSTI ID:22749874

Riffel, Philipp; Haubenreisser, Holger ^[1]; Higashigaito, Kai; Alkadhi, Hatem ^[2]; Morelli, John N. ^[3]; Alber, Bettina; Schoenberg, Stefan O.; Henzler, Thomas ^[1]

---

1. Medical Faculty Mannheim – Heidelberg University, Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim (Germany)
2. University Hospital Zurich, University of Zurich, Institute of Diagnostic and Interventional Radiology (Switzerland)
3. St. John’s Medical Center (United States)

PurposeTo compare in patients with known peripheral artery occlusive disease (PAOD), image quality of a combined CTA to a combined MRA protocol, including both static and dynamic acquisitions.Materials and MethodsTwenty-two patients with PAOD were examined with a combined CTA and MRA protocol consisting of static acquisitions (s-CTA, s-MRA) of the entire runoff and dynamic acquisitions (d-CTA, d-MRA) of the calves. Two radiologists compared image quality of the s-MRA versus s-CTA as well as d-MRA versus d-CTA. Image quality was assessed on a segmental basis using a 4-point Likert scale.ResultsFor s-CTA, 76% of segments were rated as excellent or good. For s-MRA, 50% of segments were rated as excellent or good (p < 0.0001). For d-CTA, median image quality score for all segments was rated as excellent for both readers. For d-MRA, median image quality for the different segments ranged from moderate to good. For both d-CTA and d-MRA, the median image quality scores were significantly higher for all segments of the lower limb compared with the static examinations of the lower limb segments (all p values < 0.0001). In patients with PAOD category 4–6, 80% of segments were rated as excellent or good for d-CTA, while 45% of segments were rated as poor or non-diagnostic for d-MRA.ConclusionIn patients with known PAOD, a combined static and dynamic CTA examination improves image quality relative to static and dynamic MRA and should be considered as an alternative to MRA, particularly in patients with advanced stage PAOD.

• OSTI ID: 22749874
• Journal Information: Cardiovascular and Interventional Radiology, Journal Name: Cardiovascular and Interventional Radiology Journal Issue: 8 Vol. 41; ISSN 0174-1551; ISSN CAIRDG
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ARTERIES
BIOMEDICAL RADIOGRAPHY
COMPUTERIZED TOMOGRAPHY
DISEASES
IMAGE PROCESSING
MAGNETIC RESONANCE
PATIENTS