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Integration of 68Ga-PSMA-PET imaging in planning of primary definitive radiotherapy in prostate cancer: a retrospective study

Overview of attention for article published in Radiation Oncology, May 2016
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Title
Integration of 68Ga-PSMA-PET imaging in planning of primary definitive radiotherapy in prostate cancer: a retrospective study
Published in
Radiation Oncology, May 2016
DOI 10.1186/s13014-016-0646-2
Pubmed ID
Authors

Sabrina Dewes, Kilian Schiller, Katharina Sauter, Matthias Eiber, Tobias Maurer, Markus Schwaiger, Jürgen E. Gschwend, Stephanie E. Combs, Gregor Habl

Abstract

Prostate cancer (PC) is one of the most commonly treated cancer entities with radiation therapy (RT). Risk group-adapted treatment and avoidance of unnecessary toxicities relies primarily on accurate tumor staging. Thus, the introduction of prostate-specific membrane antigen (PSMA) in diagnosis and treatment of PC is a highly interesting development in radiation oncology of urologic tumors. The present work is to evaluate the integration of (68)Ga-PSMA-PET imaging into standard radiation planning of primary definitive treatment of PC and to determine the impact of PSMA imaging on tumor staging. The data of 15 patients treated for PC between August 2013 and April 2015 were evaluated. Treatment planning included (68)Ga-PSMA-PET imaging. We analyzed whether the use of PSMA-imaging led to a change of the TNM stage and if it influenced the RT treatment approach or the target volume, due to changes in the gross tumor volume (GTV) or clinical target volume (CTV), in the final treatment plan. In 53.3 % of the analyzed patients a change occurred in the TNM stage based on (68)Ga-PSMA-PET examination. The RT concept changed in 33.3 % of all patients, leading to relevant changes in the planning target volume. Among these, an additional irradiation of the pelvic lymph drainage due to tracer uptake in lymph nodes was performed in 25 %. Furthermore, boost volumes of PET-positive lymph nodes were added in 80 % of these cases. A down staging due to the (68)Ga-PSMA-PET examination occurred in 13.3 % of all cases. The integration of (68)Ga-PSMA-PET-imaging into the RT treatment planning process can be useful for detailed target volume planning. The performance of a (68)Ga-PSMA-PET frequently leads to changes in the TNM stage, altering the RT treatment regimen and the target volume. A prospective trial is underway to evaluate the impact of (68)Ga-PSMA-PET based treatment planning on outcome.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 66 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 1 2%
Unknown 65 98%

Demographic breakdown

Readers by professional status Count As %
Researcher 14 21%
Student > Master 10 15%
Other 8 12%
Student > Doctoral Student 6 9%
Student > Bachelor 4 6%
Other 8 12%
Unknown 16 24%
Readers by discipline Count As %
Medicine and Dentistry 35 53%
Nursing and Health Professions 4 6%
Physics and Astronomy 3 5%
Computer Science 1 2%
Economics, Econometrics and Finance 1 2%
Other 3 5%
Unknown 19 29%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 May 2016.
All research outputs
#11,019,809
of 17,063,122 outputs
Outputs from Radiation Oncology
#837
of 1,686 outputs
Outputs of similar age
#152,941
of 272,246 outputs
Outputs of similar age from Radiation Oncology
#1
of 1 outputs
Altmetric has tracked 17,063,122 research outputs across all sources so far. This one is in the 23rd percentile – i.e., 23% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,686 research outputs from this source. They receive a mean Attention Score of 2.5. This one is in the 37th percentile – i.e., 37% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 272,246 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 34th percentile – i.e., 34% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them