Comparison of objective quality parameters between CTA and CTP angiographic reconstructions in ischemic stroke patients.

ABSTRACT:

Introduction

CT perfusion-angiographic reconstructions (CTP-AR) may be used for occlusion detection in ischemic stroke patients. Objective image quality of CTP-AR needs to be evaluated before implementation as it may affect occlusion detection. In this study, we aimed to assess the objective image quality, by means of contrast to noise ratio (CNR) and signal to noise ratio (SNR), of both CT-angiography and CT perfusion-angiographic reconstructions (CTP-AR).

Methods

Patients with an ischemic stroke between September 2020 up to and including September 2021 who underwent both CT perfusion and CTA at baseline were included. CTP-AR was reconstructed from 1 mm CTP series at the peak arterial enhancement. Per patient, five ipsilateral and five contralateral regions of interest (ROI

SUBMITTER: Robbe MMQ 

PROVIDER: S-EPMC11782948 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature