Evidence map›Paper›PMID 19388112›Full record

ArticleJournal of magnetic resonance imaging : JMRI2009

In vivo quantification of femoral-popliteal compression during isometric thigh contraction: Assessment using MR angiography.

Ryan Brown, Thanh D Nguyen, Pascal Spincemaille, Martin R Prince, Yi Wang

Open access · greenAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

3 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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

5 authors at 1 institution in 1 country.

Ryan BrownDepartment of Radiology, Weill Medical College of Cornell University, New York, New York, USA.
Thanh D Nguyen
Pascal Spincemaille
Martin R Prince
Yi Wang
Cornell University · US

Funding

MR DIGITAL SUBTRACTION ANGIOGRAPHY OF LOWER EXTREMITYR01HL060879 · NHLBI · WEILL MEDICAL COLL OF CORNELL UNIV · PI WANG, YI · 1999 to 2007
$2.6M
NHLBI NIH HHS HL-060879NHLBI NIH HHS R01 HL060879
6 · The paper itself

Abstract

purposeTo quantify femoral-popliteal vessel deformation during thigh contraction. MATERIALS AND

methodsEleven subjects underwent a magnetic resonance (MR) examination of the femoral-popliteal vasculature on a 1.5 T system. A custom 3D balanced steady-state free precession (SSFP) sequence was implemented to image a 15-20-cm segment of the vasculature during relaxation and voluntary isometric thigh contraction. The arterial and venous lumina were outlined using a semiautomated method. For the artery, this outline was fit to an ellipse whose aspect ratio was used to describe arterial deformation, while venous deformation was characterized by its cross-sectional area.

resultsFocal compression of the femoral-popliteal artery during contraction was observed 94-143 mm superior to the condyle that corresponds to the distal adductor canal (AC) immediately superior to the adductor hiatus. This was illustrated by a significant reduction (P < or = 0.05) in aspect ratio from 0.88 +/- 0.06 during relaxation to 0.77 +/- 0.09 during contraction. A negligible change in arterial aspect ratio was observed inferior to the AC and in the proximal AC. Similarly, venous area was dramatically reduced in the distal AC region during contraction.

conclusionRapid 3D SSFP MR angiography of the femoral-popliteal vasculature during thigh contraction demonstrated focal compression of the artery in the distal AC region. This may help explain the high stent failure rate and the high likelihood of atherosclerotic disease in the AC. J. Magn. Reson.

Indexed as

AdultCompressive StrengthElastic ModulusFemaleFemoral ArteryHumansImage Interpretation, Computer-AssistedIsometric ContractionMagnetic Resonance AngiographyMaleMuscle, SkeletalPopliteal ArteryThigh

Identifiers

PMID19388112
PMCPMC2679167
OpenAlexW2164498596

What OpenQuestion holds

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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.