Evidence map›Paper›PMID 26114045›Full record

ArticleBiomedical optics express2015

Photothermal optical lock-in optical coherence tomography for in vivo imaging.

Jason M Tucker-Schwartz, Maryse Lapierre-Landry, Chetan A Patil, Melissa C Skala

Open access · goldAbstract read
In one paragraph

Article in Biomedical optics express, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 27 citations in OpenAlex.

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  7. Investigation of GdJournal of fluorescence · 2021
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  15. Magnetic and Plasmonic Contrast Agents in Optical Coherence Tomography.IEEE journal of selected topics in quantum electronics : a publication of the IEEE Lasers and Electro-optics Society
    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

4 authors at 2 institutions in 1 country.

Jason M Tucker-SchwartzDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
Maryse Lapierre-LandryDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
Chetan A PatilDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA ; Current address: Department of Bioengineering, Temple University, Philadelphia, PA 19122, USA.
Melissa C SkalaDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
Vanderbilt University · USTemple University · US

Funding

Training in Cellular and Molecular Imaging of CancerR25CA136440 · NCI · VANDERBILT UNIVERSITY · PI GORE, JOHN C · 2009 to 2013
$2.1M
Functional Optical Coherence Tomography for Monitoring Drug Resistance in CancerR00CA142888 · NCI · VANDERBILT UNIVERSITY · PI SKALA, MELISSA CAROLINE · 2010 to 2012
$727k
NCI NIH HHS R00 CA142888NCI NIH HHS R25 CA136440
6 · The paper itself

Abstract

Photothermal OCT (PTOCT) provides high sensitivity to molecular targets in tissue, and occupies a spatial imaging regime that is attractive for small animal imaging. However, current implementations of PTOCT require extensive temporal sampling, resulting in slow frame rates and a large data burden that limit its in vivo utility. To address these limitations, we have implemented optical lock-in techniques for photothermal optical lock-in OCT (poli-OCT), and demonstrated the in vivo imaging capabilities of this approach. The poli-OCT signal was assessed in tissue-mimicking phantoms containing indocyanine green (ICG), an FDA approved small molecule that has not been previously imaged in vivo with PTOCT. Then, the effects of in vivo blood flow and motion artifact were assessed and attenuated, and in vivo poli-OCT was demonstrated with both ICG and gold nanorods as contrast agents. Experiments revealed that poli-OCT signals agreed with optical lock-in theory and the bio-heat equation, and the system exhibited shot noise limited performance. In phantoms containing biologically relevant concentrations of ICG (1 µg/ml), the poli-OCT signal was significantly greater than control phantoms (p<0.05), demonstrating sensitivity to small molecules. Finally, in vivo poli-OCT of ICG identified the lymphatic vessels in a mouse ear, and also identified low concentrations (200 pM) of gold nanorods in subcutaneous injections at frame rates ten times faster than previously reported. This work illustrates that future in vivo molecular imaging studies could benefit from the improved acquisition and analysis times enabled by poli-OCT.

Indexed as

(110.4500) Optical coherence tomography(350.5340) Photothermal effects

Identifiers

PMID26114045
PMCPMC4473760
OpenAlexW2271567713

What OpenQuestion holds

Textmetadata
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.