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Correlation between the vascular resistance index and arteriography for assessment of the distal arterial bed in
Gabriela de Oliveira Buril1, Esdras Marques Lins2, Emmanuelle Tenório Albuquerque Godoi Berenguer de Barros E Silva2
1Universidade Federal de Pernambuco - UFPE, Hospital das Clínicas - HC, Recife, PE, Brasil.
Doppler ultrasound resistance index (RI) positively correlates with Rutherford Classification in chronic limb threatening ischemia. This non-invasive measurement aids in assessing lower limb arterial disease severity and planning revascularization surgery.
Area of Science:
- Vascular Surgery
- Diagnostic Imaging
- Medical Ultrasound
Background:
- Chronic limb threatening ischemia (CLTI) necessitates arteriography for surgical planning.
- Doppler ultrasound (DU) offers non-invasive assessment of distal arteries via resistance index (RI).
Purpose of the Study:
- To correlate Rutherford Angiographic Classification with RI for evaluating the distal arterial bed in lower limbs (LL) of CLTI patients.
Main Methods:
- A cross-sectional study included 120 patients with LL CLTI.
- RI measurements from DU were compared with arteriography using Rutherford Angiographic Classification.
- The study was conducted from September 2019 to April 2022.
Main Results:
- A statistically significant positive correlation was observed between RI values and Rutherford Classification for tibial, fibular, and dorsalis pedis arteries.
- 120 lower limbs were analyzed in patients with a mean age of 68.6 years.
- 90% of patients were classified as Rutherford category five.
Conclusions:
- Doppler ultrasound RI demonstrates a positive correlation with Rutherford Classification in CLTI patients.
- RI is a potentially valuable tool for assessing the distal arterial bed in the lower limbs.
- This non-invasive method can aid in the management of CLTI.
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