Evidence map›Paper›PMID 23055299›Full record

ReviewNMR in biomedicine2013

Advantages of paramagnetic chemical exchange saturation transfer (CEST) complexes having slow to intermediate water exchange properties as responsive MRI agents.

Todd C Soesbe, Yunkou Wu, A Dean Sherry

Abstract readReview
In one paragraph

Review in NMR in biomedicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. CEST MRI in the Management/Diagnosis of Neuroinfectious Diseases.International journal of molecular sciences · 2025
    Review
  3. Article
  4. Review
  5. Review
  6. Molecular Sensing with Host Systems for HyperpolarizedMolecules (Basel, Switzerland) · 2020
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. 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

3 authors at 3 institutions in 1 country.

Todd C SoesbeAdvanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Yunkou Wu
A Dean Sherry
Advanced Imaging Research (United States) · USThe University of Texas Southwestern Medical Center · USUniversity of Dallas · US

Funding

UT Southwestern Medical Center Simmons Comprehensive Cancer CenterP30CA142543 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI Sandi Leigh Pruitt · 2010 to 2026
$53.7M
YTTRIUM HYPERPOLARIZATIONP41RR002584 · NCRR · UT SOUTHWESTERN MEDICAL CENTER · PI MASON, RALPH P. · 1985 to 2011
$14.3M
TR&D 3: Imaging Carbohydrate MetabolismP41EB015908 · NIBIB · UT SOUTHWESTERN MEDICAL CENTER · PI MALLOY, CRAIG R · 2012 to 2021
$10.9M
PARACEST Agents: Optimization for Human MR ImagingR01EB004582 · NIBIB · UT SOUTHWESTERN MEDICAL CENTER · PI LENKINSKI, ROBERT E · 2006 to 2014
$7.5M
PARACEST AGENTS FOR MOLECULAR IMAGING OF CANCER BY MRIR01CA115531 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI SHERRY, DEAN · 2005 to 2021
$4.2M
UT Southwestern Small Animal Imaging ResourceU24CA126608 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI MASON, RALPH P., SHERRY, DEAN · 2007 to 2011
$2.3M
2012 Metals in Medicine Gordon Research ConferenceR13EB015773 · NIBIB · GORDON RESEARCH CONFERENCES · PI SHERRY, DEAN · 2012 to 2012
$15k
NCI NIH HHS 1P30 CA142543NCI NIH HHS CA-115531NCI NIH HHS CA-126608NCI NIH HHS P30 CA142543NCI NIH HHS R01 CA115531NCI NIH HHS U24 CA126608NCRR NIH HHS P41 RR002584NCRR NIH HHS RR-02584NIBIB NIH HHS EB-004582NIBIB NIH HHS P41 EB015908NIBIB NIH HHS R01 EB004582NIBIB NIH HHS R13 EB015773
6 · The paper itself

Abstract

Paramagnetic chemical exchange saturation transfer (PARACEST) complexes are exogenous contrast agents that have great potential to further extend the functional and molecular imaging capabilities of magnetic resonance. As a result of the presence of a central paramagnetic lanthanide ion (Ln(3+) ≠ La(3+) , Gd(3+) , Lu(3+) ) within the chelate, the resonance frequencies of exchangeable protons bound to the PARACEST agent are shifted far away from the bulk water frequency. This large chemical shift, combined with an extreme sensitivity to the chemical exchange rate, make PARACEST agents ideally suited for the reporting of significant biological metrics, such as temperature, pH and the presence of metabolites. In addition, the ability to turn PARACEST agents 'off' and 'on' using a frequency-selective saturation pulse gives them a distinct advantage over Gd(3+) -based contrast agents. A current challenge for PARACEST research is the translation of the promising in vitro results into in vivo systems. This short review article first describes the basic theory behind PARACEST contrast agents, their benefits over other contrast agents and their applications to MRI. It then describes some of the recent PARACEST research results: specifically, pH measurements using water molecule exchange rate modulation, T2 exchange contrast caused by water molecule exchange, the use of ultrashort TEs (TE < 10 µs) to overcome T2 exchange line broadening and the potential application of T2 exchange as a new contrast mechanism for MRI.

Indexed as

Chemical PhenomenaContrast MediaMagnetic PhenomenaMagnetic Resonance ImagingAnimalsHumansWaterContrast MediaWater

Identifiers

PMID23055299
PMCPMC3593956
OpenAlexW2167830545

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.