Evidence map›Paper›PMID 25678483›Full record

ArticleAJNR. American journal of neuroradiology2015

Exploring the Value of Using Color-Coded Quantitative DSA Evaluation on Bilateral Common Carotid Arteries in Predicting the Reliability of Intra-Ascending Aorta Flat Detector CT-CBV Maps.

Q Zhang, R Xu, Q Sun, H Zhang, J Mao, T Shan, W Pan, Y Deuerling-Zheng, M Kowarschik, J Beilner

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.7field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 17 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Q ZhangFrom the Beijing PLA Military General Hospital (Q.Z., R.X., H.Z., J.M., T.S., W.P.), Affiliated Bayi Brain Hospital, Beijing, China vivien-sun1226@hotmail.com xuruxiang_bjjz@hotmail.com.
R XuFrom the Beijing PLA Military General Hospital (Q.Z., R.X., H.Z., J.M., T.S., W.P.), Affiliated Bayi Brain Hospital, Beijing, China vivien-sun1226@hotmail.com xuruxiang_bjjz@hotmail.com.
Q SunHealthcare Sector (Q.S., J.B.), Siemens Ltd China, Beijing, China.
H ZhangFrom the Beijing PLA Military General Hospital (Q.Z., R.X., H.Z., J.M., T.S., W.P.), Affiliated Bayi Brain Hospital, Beijing, China.
J MaoFrom the Beijing PLA Military General Hospital (Q.Z., R.X., H.Z., J.M., T.S., W.P.), Affiliated Bayi Brain Hospital, Beijing, China.
T ShanFrom the Beijing PLA Military General Hospital (Q.Z., R.X., H.Z., J.M., T.S., W.P.), Affiliated Bayi Brain Hospital, Beijing, China.
W PanFrom the Beijing PLA Military General Hospital (Q.Z., R.X., H.Z., J.M., T.S., W.P.), Affiliated Bayi Brain Hospital, Beijing, China.
Y Deuerling-ZhengSiemens AG (Y.D.-Z., M.K.), Erlangen, Germany.
M KowarschikSiemens AG (Y.D.-Z., M.K.), Erlangen, Germany.
J BeilnerHealthcare Sector (Q.S., J.B.), Siemens Ltd China, Beijing, China.
The Military General Hospital of Beijing PLA · CNSiemens (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeCerebral blood volume, acquired with flat panel detector CT by injecting contrast medium into the ascending aorta, enabled real-time acquisition of brain functional information with remarkable reduction of contrast medium usage comparing to an intravenous injection approach. However, individual vasculature and flow variations cause inhomogeneous contrast medium distribution and unexpected asymmetric perfusion for certain patients even without cerebral circulatory disorders. This work aimed at testing the feasibility of using color-coded quantitative DSA to predict the reliability of flat panel detector CT-based CBV maps by injecting contrast medium into the ascending aorta by exploring the correlation between measurements of color-coded quantitative DSA and the symmetry of CBV maps. MATERIALS AND

methodsFor 12 patients without perfusion-related cerebral abnormities, color-coded quantitative DSA at the aortic arch and flat panel detector CT-based CBV maps by injecting contrast medium into the ascending aorta were acquired. In color-coded quantitative DSA, ROIs were defined on the bilateral common carotid arteries. Time-density curves were extracted, and area under the curve values were calculated. To evaluate brain perfusion symmetry, we defined ROIs on the anterior and middle cerebral artery territories in CBV maps, and quantitative CBV values were extracted.

resultsEight patients demonstrated good perfusion symmetry with relative CBV of 0.96 ± 0.06, and their relative area under the curve was found to be 0.99 ± 0.02. For the other 4 patients, CBV from the left hemisphere was significantly lower than that from the right with relative CBV of 0.81 ± 0.09. This asymmetric perfusion was confirmed by the color-coded quantitative DSA with relative area under the curve values of 0.79 ± 0.03.

conclusionsThis preliminary study showed good correlation between relative area under the curve from color-coded quantitative DSA and relative CBV from CBV maps. Color-coded quantitative DSA potentially helped sort out patients whose vascular anatomy could support reliable CBV acquisitions of flat detector CT by injecting contrast medium into the ascending aorta.

Indexed as

AgedAortaArea Under CurveBrain MappingCarotid Artery, CommonCerebral AngiographyCerebrovascular CirculationContrast MediaFemaleHumansInjections, Intra-ArterialMaleMiddle AgedPerfusionReproducibility of ResultsROC CurveContrast Media

Identifiers

PMID25678483
PMCPMC7990593
OpenAlexW1975541463

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.