Evidence map›Paper›PMID 32981239›Full record

ArticleJournal of biomedical optics2020

Depth-resolved imaging of photosensitizer in the rodent brain using fluorescence laminar optical tomography.

Brandon Gaitan, Collin T Inglut, Yi Liu, Yu Chen, Huang-Chiao Huang

Open access · goldAbstract read
In one paragraph

Article in Journal of biomedical optics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Neurophotonics · 2020
    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 2 institutions in 1 country.

Brandon GaitanUniversity of Maryland College Park, Fischell Department of Bioengineering, College Park, Maryland, United States.
Collin T InglutUniversity of Maryland College Park, Fischell Department of Bioengineering, College Park, Maryland, United States.
Yi LiuUniversity of Maryland College Park, College of Computer Science, College Park, Maryland, United States.
Yu ChenUniversity of Massachusetts-Amherst, S617 Life Science Laboratories, Department of Biomedical Engine, United States.
Huang-Chiao HuangUniversity of Maryland College Park, Fischell Department of Bioengineering, College Park, Maryland, United States.
University of Maryland, College Park · USUniversity of Massachusetts Amherst · US

Funding

Multifunctional, GBM-Activatable Nanocarriers For Image-Guided PhotochemotherapyR00CA194269 · NCI · UNIV OF MARYLAND, COLLEGE PARK · PI HUANG, HUANG CHIAO · 2018 to 2020
$701k
Photodynamic Priming for Bidirectional Modulation of Drug Transport Across the Blood-Brain Tumor BarrierR21EB028508 · NIBIB · UNIV OF MARYLAND, COLLEGE PARK · PI HUANG, HUANG CHIAO · 2020 to 2022
$621k
NCI NIH HHS R00 CA194269NIBIB NIH HHS R21 EB028508
6 · The paper itself

Abstract

significancePrevious studies have been performed to image photosensitizers in certain organs and tumors using fluorescence laminar optical tomography. Currently, no work has yet been published to quantitatively compare the signal compensation of fluorescence laminar optical tomography with two-dimensional (2-D) imaging in tissues.

aimThe purpose of this study is to quantify the benefit that fluorescence laminar optical tomography holds over 2-D imaging. We compared fluorescence laminar optical tomography with maximum intensity projection imaging to simulate 2-D imaging, as this would be the most similar and stringent comparison. APPROACH: A capillary filled with a photosensitizer was placed in a phantom and ex vivo rodent brains, with fluorescence laminar optical tomography and maximum intensity projection images obtained. The signal loss in the Z direction was quantified and compared to see which methodology could compensate better for signal loss caused by tissue attenuation.

resultsThe results demonstrated that we can reconstruct a capillary filled with benzoporphyrin derivative photosensitizers faithfully in phantoms and in ex vivo rodent brain tissues using fluorescence laminar optical tomography. We further demonstrated that we can better compensate for signal loss when compared with maximum intensity projection imaging.

conclusionsUsing fluorescence laminar optical tomography (FLOT), one can compensate for signal loss in deeper parts of tissue when imaging in ex vivo rodent brain tissue compared with maximum intensity projection imaging.

Indexed as

Photosensitizing AgentsTomography, OpticalAnimalsBrainPhantoms, ImagingRodentiaPhotosensitizing Agentsfluorescence laminar optical tomographyimage reconstructionphotosensitizersignal compensation

Identifiers

PMID32981239
PMCPMC7519352
OpenAlexW3087949537

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.