Evidence map›Paper›PMID 31556122›Full record

ArticlePhotochemistry and photobiology2020

Evaluation of Light Fluence Distribution Using an IR Navigation System for HPPH-mediated Pleural Photodynamic Therapy (pPDT).

Timothy C Zhu, Yihong Ong, Michele M Kim, Xing Liang, Jarod C Finlay, Andreea Dimofte, Charles B Simone, Joseph S Friedberg, Theresa M Busch, Eli Glatstein and 1 more

Open access · greenAbstract read
In one paragraph

Article in Photochemistry and photobiology, 2020. 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
2.1field-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

14 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Photodynamic Therapy for Cancer: What's Past is Prologue.Photochemistry and photobiology · 2020
    Review
  12. Article
  13. PDT Light Fluence Phantom Modeling of the Human Pleural Cavity: A Proof-of-Concept Pre-Clinical Study.Proceedings of SPIE--the International Society for Optical Engineering
    Article
  14. Real-time PDT Dose Dosimetry for Pleural Photodynamic Therapy.Proceedings of SPIE--the International Society for Optical Engineering
    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

11 authors at 3 institutions in 1 country.

Timothy C ZhuDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.ORCID 0000-0003-2842-8984
Yihong OngDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.ORCID 0000-0002-2826-1451
Michele M KimDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
Xing LiangDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
Jarod C FinlayDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
Andreea DimofteDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
Charles B SimoneNew York Proton Center, New York, NY.
Joseph S FriedbergDepartment of Surgery, University of Maryland, Baltimore, PA.
Theresa M BuschDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
Eli GlatsteinDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
Keith A CengelDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA.
University of Pennsylvania · USNew York Proton Center · USUniversity of Maryland, Baltimore · US

Funding

TUMOR HYPOXIA, PHOTOSENSITIZER, VASCULARITY AND PDTP01CA087971 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BUSCH, THERESA M, CENGEL, KEITH A · 2001 to 2019
$24.8M
Image-guided treatment planning for pleural Photodynamic TherapyR01CA154562 · NCI · UNIVERSITY OF PENNSYLVANIA · PI ZHU, TIMOTHY C. · 2012 to 2016
$1.6M
Development of Novel Fast GPU Monte Carlo and Active Photonics Simulation SoftwarR43CA183236 · NCI · SIMPHOTEK, INC. · PI PARILOV, EVGUENI, POTASEK, MARY · 2014 to 2014
$225k
NCI NIH HHS P01 CA087971NCI NIH HHS R01 CA154562NCI NIH HHS R43 CA183236NIH HHS P01 CA87971
6 · The paper itself

Abstract

Uniform light fluence distribution for patients undergoing photodynamic therapy (PDT) is critical to ensure predictable PDT outcomes. However, current practice when delivering intrapleural PDT uses a point source to deliver light that is monitored by seven isotropic detectors placed within the pleural cavity to assess its uniformity. We have developed a real-time infrared (IR) tracking camera to follow the movement of the light point source and the surface contour of the treatment area. The calculated light fluence rates were matched with isotropic detectors using a two-correction factor method and an empirical model that includes both direct and scattered light components. Our clinical trial demonstrated that we can successfully implement the IR navigation system in 75% (15/20) of the patients. Data were successfully analyzed in 80% (12/15) patients because detector locations were not available for three patients. We conclude that it is feasible to use an IR camera-based system to track the motion of the light source during PDT and demonstrate its use to quantify the uniformity of light distribution, which deviated by a standard deviation of 18% from the prescribed light dose. The navigation system will fail when insufficient percentage of light source positions is obtained (<30%) during PDT.

Indexed as

Infrared RaysChlorophyllHumansPhotochemotherapyPleural Neoplasms2-(1-hexyloxyethyl)-2-devinyl pyropheophorbide-aChlorophyll

Identifiers

PMID31556122
PMCPMC7093257
OpenAlexW2975746635

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.