Evidence map›Paper›PMID 35146973›Full record

ArticleJournal of biomedical optics2022

Effects of patient-specific treatment planning on eligibility for photodynamic therapy of deep tissue abscess cavities: retrospective Monte Carlo simulation study.

Zihao Li, Lam Nguyen, David A Bass, Timothy M Baran

Open access · goldAbstract read
In one paragraph

Article in Journal of biomedical optics, 2022. 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
2.9field-weighted citation impact, top 8% 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, 19 citations in OpenAlex.

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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.

Zihao LiUniversity of Rochester, The Institute of Optics, Rochester, New York, United States.
Lam NguyenUniversity of Rochester, Department of Biomedical Engineering, Rochester, New York, United States.
David A BassUniversity of Rochester Medical Center, Department of Imaging Sciences, Rochester, New York, United States.
Timothy M BaranUniversity of Rochester, Department of Biomedical Engineering, Rochester, New York, United States.
University of Rochester · USUniversity of Rochester Medical Center · US

Funding

Optical property measurement in human abscess cavities for photodynamic therapy treatment planningR01EB029921 · NIBIB · UNIVERSITY OF ROCHESTER · PI BARAN, TIMOTHY M · 2020 to 2023
$827k
NIBIB NIH HHS R01 EB029921
6 · The paper itself

Abstract

significanceAntimicrobial photodynamic therapy (PDT) effectively kills bacterial strains found in deep tissue abscess cavities. PDT response hinges on multiple factors, including light dose, which depends on patient optical properties.

aimComputed tomography images for 60 abscess drainage subjects were segmented and used for Monte Carlo (MC) simulation. We evaluated effects of optical properties and abscess morphology on PDT eligibility and generated treatment plans. APPROACH: A range of abscess wall absorptions (μa  ,  wall) and intra-cavity Intralipid concentrations were simulated. At each combination, the threshold optical power and optimal Intralipid concentration were found for a fluence rate target, with subjects being eligible for PDT if the target was attainable with <2000  mW of source light. Further simulations were performed with absorption within the cavity (μa  ,  cavity).

resultsPatient-specific treatment planning substantially increased the number of subjects expected to achieve an efficacious light dose for antimicrobial PDT, especially with Intralipid modification. The threshold optical power and optimal Intralipid concentration increased with increasing μa  ,  wall (p  <  0.001). PDT eligibility improved with patient-specific treatment planning (p  <  0.0001). With μa  ,  wall  =  0.2  cm  -  1, eligibility increased from 42% to 92%. Increasing μa  ,  cavity reduced PDT eligibility (p  <  0.0001); modifying the delivered optical power had the greatest impact in this case.

conclusionsMC-based treatment planning greatly increases eligibility for PDT of abscess cavities.

Indexed as

PhotochemotherapyAbscessComputer SimulationHumansMonte Carlo MethodRetrospective Studiesabscessantimicrobial photodynamic therapycavityMonte Carlo simulationoptical propertiestreatment planning

Identifiers

PMID35146973
PMCPMC8831513
OpenAlexW4211183164

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.