Evidence map›Paper›PMID 22761686›Full record

ArticlePloS one2012

Line-scanning particle image velocimetry: an optical approach for quantifying a wide range of blood flow speeds in live animals.

Tyson N Kim, Patrick W Goodwill, Yeni Chen, Steven M Conolly, Chris B Schaffer, Dorian Liepmann, Rong A Wang

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.

  1. Translational relevance of animal models available on brain arteriovenous malformations, a systematic review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Pooled it
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  8. Persistent dysmorphology and dysfunction of the brain microvasculature following repeated trauma.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
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  18. Novel intravital approaches to quantify deep vascular structure and perfusion in the aging mouse brain using ultrasound localization microscopy (ULM).Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  19. Capillary regression leads to sustained local hypoperfusion by inducing constriction of upstream transitional vessels.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  20. Article

3 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 1 country.

Tyson N KimLaboratory for Accelerated Vascular Research, Division of Vascular Surgery, Department of Surgery, University of California San Francisco, San Francisco, California, United States of America.
Patrick W Goodwill
Yeni Chen
Steven M Conolly
Chris B Schaffer
Dorian Liepmann
Rong A Wang
University of California, Berkeley · USUniversity of California, San Francisco · USCornell University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007618 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ANDERSON, MARK S · 1985 to 2020
$29.6M
Notch Signaling in Mouse Arterial-Venous SpecificationR01HL075033 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WANG, RONG · 2005 to 2015
$3.7M
Molecular Pathogenesis of Brain Arteriovenous MalformationR01NS067420 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WANG, RONG · 2010 to 2018
$2.3M
Notch Enhances Shear-mediated Arteriogenesis in Cerebral VesselsF30HL099005 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KIM, TYSON NAM · 2010 to 2014
$135k
NHLBI NIH HHS F30 1F30HL099005NHLBI NIH HHS F30 HL099005NHLBI NIH HHS R01 HL075033NIGMS NIH HHS T32 GM007618NIGMS NIH HHS T32 GM07618NINDS NIH HHS R01 NS067420
6 · The paper itself

Abstract

backgroundThe ability to measure blood velocities is critical for studying vascular development, physiology, and pathology. A key challenge is to quantify a wide range of blood velocities in vessels deep within living specimens with concurrent diffraction-limited resolution imaging of vascular cells. Two-photon laser scanning microscopy (TPLSM) has shown tremendous promise in analyzing blood velocities hundreds of micrometers deep in animals with cellular resolution. However, current analysis of TPLSM-based data is limited to the lower range of blood velocities and is not adequate to study faster velocities in many normal or disease conditions. METHODOLOGY/PRINCIPAL

findingsWe developed line-scanning particle image velocimetry (LS-PIV), which used TPLSM data to quantify peak blood velocities up to 84 mm/s in live mice harboring brain arteriovenous malformation, a disease characterized by high flow. With this method, we were able to accurately detect the elevated blood velocities and exaggerated pulsatility along the abnormal vascular network in these animals. LS-PIV robustly analyzed noisy data from vessels as deep as 850 µm below the brain surface. In addition to analyzing in vivo data, we validated the accuracy of LS-PIV up to 800 mm/s using simulations with known velocity and noise parameters. CONCLUSIONS/SIGNIFICANCE: To our knowledge, these blood velocity measurements are the fastest recorded with TPLSM. Partnered with transgenic mice carrying cell-specific fluorescent reporters, LS-PIV will also enable the direct in vivo correlation of cellular, biochemical, and hemodynamic parameters in high flow vascular development and diseases such as atherogenesis, arteriogenesis, and vascular anomalies.

Indexed as

Microscopy, ConfocalRheologyAnimalsArteriovenous MalformationsBlood Flow VelocityBrainBrain DiseasesCell TrackingEphrin-B2ErythrocytesGreen Fluorescent ProteinsHemodynamicsMiceMice, KnockoutProto-Oncogene ProteinsReceptor, Notch4Ephrin-B2Green Fluorescent ProteinsNotch4 protein, mouseProto-Oncogene ProteinsReceptor, Notch4Receptors, Notch

Identifiers

PMID22761686
PMCPMC3383695
OpenAlexW2054297253

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.