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18F-FDG PET/CT as a prognostic factor in penile cancer

Overview of attention for article published in European Journal of Nuclear Medicine and Molecular Imaging, August 2018
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Title
18F-FDG PET/CT as a prognostic factor in penile cancer
Published in
European Journal of Nuclear Medicine and Molecular Imaging, August 2018
DOI 10.1007/s00259-018-4128-7
Pubmed ID
Authors

André Salazar, Eduardo Paulino Júnior, Paulo Guilherme O. Salles, Raul Silva-Filho, Edna A. Reis, Marcelo Mamede

Abstract

Penile cancer (PC) is a rare neoplasm with an aggressive behavior and variable prognosis. Lymph node (LN) involvement and pathological features of the primary lesion have been proven to be the most important survival factors. Positron emission tomography/computed tomography with fluorodeoxyglucose labelled with fluorine-18 (18F-FDG PET/CT) provides information on tumor staging and works as a prognostic factor, with promising results in other carcinomas. The aim of the present study is to evaluate PET/CT as a prognostic factor in PC. Fifty-five patients (mean age 56.6 y) diagnosed with penile squamous cell carcinoma were prospectively evaluated from 2012 to 2014. All subjects underwent 18F-FDG PET/CT before treatment and were regularly followed after surgery. Out of the 53 patients selected, 17 (32.1%) had localized disease (cT1-2) and 24 (45.3%) had palpable nodes (cN+). Partial penile amputation was performed in 38 patients (71.7%) and inguinal lymphadenectomy (LND) in 30 (56.6%). From the LND group, 16 (53.3%) presented with positive neoplastic cells (pN+). Patients with more aggressive disease had a significantly (p = 0.019) higher 18F-FDG tumor uptake (pSUVmax), while inguinal LN uptake (nSUVmax) was able to recognize metastatic LN (p = 0.039). Some pathological prognostic features, when presented, have shown significant changes in pSUVmax values. Receiver operating characteristic (ROC) curves were performed and specific cutoff values of pSUVmax were evaluated to determine sensitivity and specificity. Regarding regional LNs, PET/CT presented a 76.2% accuracy in cN+ patients. After a 39-month follow up, pSUVmax of 16.6 (p = 0.0001) and nSUVmax of 6.5 (p = 0.019) were established as the ideal values to predict cancer-specific survival. The multivariate analysis confirmed nSUVmax as a predictor for LN metastasis (p = 0.043) and pSUVmax as a mean to estimate survival rate (p = 0.05). This study showed promising results on the use of 18F-FDG PET/CT as a prognostic tool for PC, using specific cutoff values of pSUVmax and nSUVmax.

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Geographical breakdown

Country Count As %
Unknown 18 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 4 22%
Student > Ph. D. Student 3 17%
Other 2 11%
Student > Doctoral Student 2 11%
Student > Master 2 11%
Other 2 11%
Unknown 3 17%
Readers by discipline Count As %
Medicine and Dentistry 10 56%
Neuroscience 3 17%
Unspecified 1 6%
Nursing and Health Professions 1 6%
Unknown 3 17%
Attention Score in Context

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 26 August 2018.
All research outputs
#21,153,429
of 23,806,312 outputs
Outputs from European Journal of Nuclear Medicine and Molecular Imaging
#2,610
of 3,083 outputs
Outputs of similar age
#293,242
of 335,459 outputs
Outputs of similar age from European Journal of Nuclear Medicine and Molecular Imaging
#44
of 58 outputs
Altmetric has tracked 23,806,312 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,083 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.1. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 58 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.