Neither computed tomography (CT) perfusion nor CT angiography meet the prespecified validation threshold as an ancillary test ...

Qualitative whole-brain CT perfusion achieved 93.6% sensitivity and 92.3% specificity. CT angiography sensitivity ranged from 75.5–87.3%, while specificity held near 90% across scales.

CT angiography sensitivity ranged from 75.5% to 87.3%, and specificity ranged from 89.7% to 91.0%, the researchers reported in JAMA Neurology.The findings were also presented at the Critical Care ...

In the acute stroke setting imaging must, therefore, provide information beyond the presence or absence of ICH. Multimodal CT, including CT angiography (CTA) and CT perfusion (CTP), and multimodal ...

CT perfusion had a higher sensitivity than MR perfusion based on the secondary reference standard (p < 0.01), but a lower specificity than MR using the primary reference standard (p < 0.01). The ...

As well as the individual software package, Aidoc has partnered with icometrix (see section 2.13) for a 'stroke solution' (AIDOC ICH for detecting intracranial haemorrhage on non-enhanced CT brain ...

The HOPE trial included 372 stroke patients who presented 4.5 hours to 24.0 hours from symptom onset and who had salvageable brain tissue as identified on CT perfusion imaging.

Adding stress myocardial CT perfusion imaging to examinations with CT angiography may safely increase diagnostic specificity and reduce the need for invasive treatments in patients with possible ...

Three perfusion CT parameters of hepatic perfusion index (HPI), mean transit time (MTT) and permeability-surface area product (PS) were compared among controls, patients and subgroups.

Perfusion CT may be used as a noninvasive tool in diagnosing hepatic toxicity. ### Reference: Zhang Q, Yuan ZG, Wang DQ, Yan ZH, Tang J, Liu ZQ.

Viz is a software platform that includes AI-derived stroke-related algorithms Viz ICH, Viz LVO and Viz CTP. Viz ICH detects intracranial haemorrhage on non-enhanced CT brain scans. Viz LVO detects ...