Evidence map›Paper›PMID 22178540›Full record

ArticleBone2012

Ultrashort echo time (UTE) imaging with bi-component analysis: bound and free water evaluation of bovine cortical bone subject to sequential drying.

Reni Biswas, Won Bae, Eric Diaz, Koichi Masuda, Christine B Chung, Graeme M Bydder, Jiang Du

Open access · greenAbstract read
In one paragraph

Article in Bone, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
5.0field-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

69 citing papers in PubMed, 118 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. In Vivo Assessment of Bone Quality Without X-rays.Current osteoporosis reports · 2024
    Review
  10. Bone Biomarkers Based on Magnetic Resonance Imaging.Seminars in musculoskeletal radiology · 2024
    Review
  11. Micron-resolution Imaging of Cortical Bone under 14 T Ultrahigh Magnetic Field.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  12. Article
  13. TNMR in biomedicine · 2023
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review

9 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 1 institution in 1 country.

Reni BiswasDepartment of Radiology, University of California, San Diego, CA 92103-8226, USA.
Won Bae
Eric Diaz
Koichi Masuda
Christine B Chung
Graeme M Bydder
Jiang Du
University of California, San Diego · US

Funding

UTE MR Imaging of the Cartilaginous Endplate in the Lumbar SpineK01AR059764 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BAE, WON C · 2010 to 2013
$469k
Imaging of the Zone of Calcified Cartilage Using 2D and 3D DIR UTE SequencesR21AR057901 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DU, JIANG · 2010 to 2011
$375k
NIAMS NIH HHS 1R21AR057901-01A1NIAMS NIH HHS K01 AR059764NIAMS NIH HHS R21 AR057901
6 · The paper itself

Abstract

Recent proton magnetic resonance (MR) spectroscopy studies have shown that cortical bone exists as different components which have distinct transverse relaxation times (T2s). However, cortical bone shows zero or near zero signal with all conventional MR sequences on clinical scanners and the different water components cannot be assessed with this approach. In order to detect signal in this situation a two-dimensional (2D) non-slice selective ultrashort echo time (UTE) pulse sequence with a nominal TE of 8 μs was used together with bi-component analysis to quantify bound and free water in bovine cortical bone at 3T. Total water concentration was quantified using a 3D UTE sequence together with a reference water phantom. 2D and 3D UTE imaging were performed on 14 bovine bone samples which were subjected to sequential air drying to evaluate free water loss, followed by oven drying to evaluate bound water loss. Sequential bone weight loss was measured concurrently using a precision balance. Bone porosity was measured with micro computed tomography (μCT) imaging. UTE measured free water loss was higher than the volume of cortical pores measured with μCT, but lower than the gravimetric bone water loss measured during air drying. UTE assessed bound water loss was about 82% of gravimetric bone water loss during oven drying. On average bovine cortical bone showed about 13% free water and 87% bound water. There was a high correlation (R=0.91; P<0.0001) between UTE MR measured free water loss and gravimetric bone weight loss during sequential air drying, and a significant correlation (R=0.69; P<0.01) between UTE bound water loss and gravimetric bone weight loss during oven drying. These results show that UTE bi-component analysis can reliably quantify bound and free water in cortical bone. The technique has potential applications for the in vivo evaluation of bone porosity and organic matrix.

Indexed as

AnimalsBone and BonesCattleDesiccationEcho-Planar ImagingPhantoms, ImagingWaterWater

Identifiers

PMID22178540
PMCPMC3463503
OpenAlexW2087763916

What OpenQuestion holds

Textmetadata
LicenceTDM
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.