But can this be done in the ambulance and be at least as fast as these others? With no discussion of how fast this is, I would say this is bad research and useless.
TIME IS BRAIN you know.
Maybe you want these much faster objective diagnosis options.
Hats off to Helmet of Hope - stroke diagnosis in 30 seconds; February 2017
Microwave Imaging for Brain Stroke Detection and Monitoring using High Performance Computing in 94 seconds March 2017
New Device Quickly Assesses Brain Bleeding in Head Injuries - 5-10 minutes April 2017
Ski-Mask Design AIR Coil Offers Whole-Brain Imaging Without Claustrophobia
Blood Biomarkers to Differentiate Ischemic and Hemorrhagic Strokes Might Allow Prehospital Thrombolysis
The latest here:
Novel flat-panel cone-beam CT compared to multi-detector CT for assessment of acute ischemic stroke: A prospective study
Published:March 10, 2021DOI:https://doi.org/10.1016/j.ejrad.2021.109645
Highlights
- •Cone-beam CT (CBCT) can be performed in the angiosuite for the assessment of acute ischemic stroke (AIS) patients.
- •Image quality (IQ) developments improved assessment of brain parenchyma that was not achievable with older CBCT technology.
- •Continued IQ improvements may allow for the eventual primary use of CBCT for the evaluation of selected AIS patients.
Abstract
Purpose
Cone beam CT (CBCT) imaging assessment of acute ischemic stroke (AIS) patients with
large-vessel occlusion (LVO) in the angiosuite may improve stroke workflow and decrease
time to recanalization. In order for this workflow to gain widespread acceptance,
current CBCT imaging needs further development to improve image quality. Our study
aimed to compare the image quality of a new CBCT protocol performed directly in the
angiosuite with imaging from multidetector CT as a gold standard.
Methods
AIS patients with an LVO who were candidates for endovascular treatment were prospectively
included in this study. Following conventional multidetector CT (MDCT), patients underwent
unenhanced cone beam CT (XperCT, Philips) imaging in the angiosuite, using two different
protocols: a standard 20.8 s XperCT and/or an improved 10.4 s XperCT protocol. Images
were evaluated using both qualitative and quantitative methods.
Results
We included 65 patients in the study. Patients received CBCT imaging prior to endovascular
treatment; 18 patients were assessed with a standard 20.8 s protocol scans and 47
with a newer 10.4 s scan. The quantitative analysis showed that the mean contrast-to-noise
ratio (CNR) was significantly higher for the newer 10.4 s protocol compared with the
20.8 s protocol (2.08 +/- 0.64 vs. 1.15 +/- 0.27, p < 0.004) and the mean image noise
was significantly lower for the 10.4 s XperCTs when compared with the 20.8 s XperCTs
(6.30 +/- 1.34 vs. 7.82 +/- 2.03, p=<0.003). Qualitative analysis, including 6 measures
of image quality, demonstrated that 74.1 % of the 10.4 s XperCT scans were ranked
as ‘Acceptable’ for assessing parenchymal imaging in AIS patients(scoring 3–5 points
on a 5-point Likert-scale), compared with 32.4 % of the standard 20.8 s XperCT and
100 % of the MDCT scans. Compared to the MDCT studies, 83 % of the 10.4 s XperCT scans
were deemed sufficient image quality for a direct-to-angiosuite selection, compared
to only 11 % for the standard 20.8 s scans. The largest image quality improvements
included grey/white matter differentiation (59 % improvement), and reduction of image
noise and artefacts (63 % & 50 % improvement, respectively).
Conclusions
Continued advances in cone-beam CT allow marked improvements in image quality for
the assessment of brain parenchyma, which supports a direct-to-angiosuite approach
for AIS patients eligible for thrombectomy treatment.
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