skip to main content

SciTech ConnectSciTech Connect

Title: Functional Imaging of the Foot with Perfusion Angiography in Critical Limb Ischemia

PurposeTo report on the first clinical experience with perfusion angiography (PA) of the foot in patients with chronic critical limb ischemia.Materials and MethodsPA is a post-processing software algorithm and no extra digital subtraction angiography (DSA) has to be performed for this analysis. The data used to test the feasibility of PA were obtained from a consecutive group of 89 patients with CLI who were treated with standard below the knee angioplasty and 12 separate patients who were not suitable for endovascular revascularization.ResultsMotion artifacts in the dataset of the DSA made post-procedural analysis impossible in 10 % intervention. In the majority of patients (59/68) PA showed an increase in volume flow in the foot after successful angioplasty of the crural vessels. However, in 9/68 patients no increase was seen after successful angioplasty. With the use of a local administered competitive α-adrenergic receptor antagonist, it is also possible to test and quantify the capillary resistance index which is a parameter for the remaining functionality of the microcirculation in CLI patients.ConclusionPA might be used as a new endpoint for lower limb revascularization and can also be used to test the functionality the microcirculation to identify sub-types of patients with CLI. Clinical evaluation and standardizationmore » of PA is mandatory before introduction in daily practice.« less
Authors:
 [1] ;  [2] ; ;  [3]
  1. AMC, Dept of Radiology (Netherlands)
  2. AMC, Dept of Vascular Surgery (Netherlands)
  3. AMC, Dept of Biomedical Engineering and Physics (Netherlands)
Publication Date:
OSTI Identifier:
22469589
Resource Type:
Journal Article
Resource Relation:
Journal Name: Cardiovascular and Interventional Radiology; Journal Volume: 39; Journal Issue: 2; Conference: BSIR 2015: Britisch Society of Interventional Radiology 2015 annual meeting, Glasgow, Scotland (United Kingdom), 4-6 Nov 2015; Other Information: Copyright (c) 2016 Springer Science+Business Media New York and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE); Article Copyright (c) 2015 The Author(s); http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; ALGORITHMS; BIOMEDICAL RADIOGRAPHY; BONE JOINTS; CAPILLARIES; COMPUTER CODES; DATASETS; FEET; INDEXES; ISCHEMIA; PATIENTS; RECEPTORS; WHO