AI-support for the detection of intracranial large vessel occlusions: One-year prospective evaluation.

Purpose: Few studies have evaluated real-world performance of radiological AI-tools in clinical practice. Over one-year, we prospectively evaluated the use of AI software to support the detection of intracranial large vessel occlusions (LVO) on CT angiography (CTA).

Method: Quantitative measures (user log-in attempts, AI standalone performance) and qualitative data (user surveys) were reviewed by a key-user group at three timepoints.

Duration and accuracy of automated stroke CT workflow with AI-supported intracranial large vessel occlusion detection.

The Automation Platform (AP) is a software platform to support the workflow of radiologists and includes a stroke CT package with integrated artificial intelligence (AI) based tools. The aim of this study was to evaluate the diagnostic performance of the AP for the detection of intracranial large vessel occlusions (LVO) on conventional CT angiography (CTA), and the duration of CT processing in a cohort of acute stroke patients. The diagnostic performance for intracranial LVO detection on CTA by the AP was evaluated in a retrospective cohort of 100 acute stroke patients and compared to the diagnostic performance of five radiologists with different levels of experience.

Brain CT perfusion improves intracranial vessel occlusion detection on CT angiography.

Background And Purpose: To evaluate whether brain CT perfusion (CTP) aids in the detection of intracranial vessel occlusion on CT angiography (CTA) in acute ischemic stroke.

Materials And Methods: Medical-ethical committee approval of our hospital was obtained and informed consent was waived. Patients suspected of acute ischemic stroke who underwent non-contrast CT(NCCT), CTA and whole-brain CTP in our center in the year 2015 were included.

[Hepatitis C virus antibodies in patients and the normal population].

With regard to the controversial issue of a reduction of transfusion-associated infections by non-remunerated donations, epidemiological data on the prevalence of HIV-1, HIV-2 and hepatitis C virus (HCV) are of particular interest in our country. We investigated four sample categories: (1) healthy employees and workers from Hamburg; (2) hemodialysis patients; (3) hemato-oncological patients, and (4) blood donors, and tried to differentiate between the three disputed vectors of community-acquired (sexually or pregnancy-transmitted), nosocomial and transfusion/transplantation-associated HCV infections. We conclude from our results that--prior to the implementation of blood screening--our carefully selected 'paid blood donors' conferred no higher HCV risks than the general (working) population (0.