The efficacy of cone-beam ct-based perfusion mapping in evaluation of tissue perfusion in peripheral arterial disease

Ran Kim, Sun Young Choi, Yeo Ju Kim

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This study investigated the use of cone-beam computed tomography (CBCT)-based perfusion mapping during percutaneous transluminal angioplasty (PTA) to predict clinical outcome in the peripheral arterial disease (PAD). From January 2016 to March 2020, 43 patients (28 male, 15 female; mean age, 69) with 51 limbs, who underwent PTA with CBCT-based foot perfusion mapping for PAD were included. Parenchymal blood volume (PBV) of foot was measured. Clinical response was investigated based on medical records. Predictive value for clinical success was evaluated using multiple logistic regression with C-statistics. Two reviewers visually assessed the improvement on angiography and CBCT-based foot perfusion mapping; inter-observer agreement of clinical success between the two were measured. Technical and clinical success rate of PTA was 90.8% and 68.6%, respectively. In multiple logistic regression, the maximum value of PBV (PBVmax) on perfusion mapping after PTA was significant (p = 0.03) for evaluating clinical success with the highest C-statistic (0.84). Using a cutoff of 235.7 mL/L for PBVmax after PTA, area under curve for prediction of clinical success was 0.664, and sensitivity and specificity were 71.4% and 68.8%, respectively. Consistency in prediction of clinical success between the two reviewers was almost perfect for CBCT-based foot perfusion mapping.

Original languageEnglish
Article number947
Pages (from-to)1-12
Number of pages12
JournalJournal of Clinical Medicine
Volume10
Issue number5
DOIs
StatePublished - 1 Mar 2021

Keywords

  • Cone-beam CT-based perfusion mapping
  • Critical limb ischemia
  • Parenchymal blood volume
  • Percutaneous transluminal angioplasty
  • Peripheral arterial disease

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