Uncovering the invisible-prevalence, characteristics, and radiomics feature-based detection of visually undetectable intraprostatic tumor lesions in


Journal

European journal of nuclear medicine and molecular imaging
ISSN: 1619-7089
Titre abrégé: Eur J Nucl Med Mol Imaging
Pays: Germany
ID NLM: 101140988

Informations de publication

Date de publication:
06 2021
Historique:
received: 31 07 2020
accepted: 08 11 2020
pubmed: 20 11 2020
medline: 29 5 2021
entrez: 19 11 2020
Statut: ppublish

Résumé

Primary prostate cancer (PCa) can be visualized on prostate-specific membrane antigen positron emission tomography (PSMA-PET) with high accuracy. However, intraprostatic lesions may be missed by visual PSMA-PET interpretation. In this work, we quantified and characterized the intraprostatic lesions which have been missed by visual PSMA-PET image interpretation. In addition, we investigated whether PSMA-PET-derived radiomics features (RFs) could detect these lesions. This study consists of two cohorts of primary PCa patients: a prospective training cohort (n = 20) and an external validation cohort (n = 52). All patients underwent In the training cohort, visual PET image interpretation missed 134 tumor lesions in 60% (12/20) of the patients, and of these patients, 75% had clinically significant (ISUP > 1) PCa. The median diameter of the missed lesions was 2.2 mm (range: 1-6). Standard clinical parameters like the NCCN risk group were equally distributed between patients with and without visually missed lesions (p < 0.05). Two RFs (local binary pattern (LBP) size-zone non-uniformality normalized and LBP small-area emphasis) were found to perform excellently in visually unknown PCa detection (Mann-Whitney U: p < 0.01, ROC-AUC: ≥ 0.93). In the validation cohort, PCa was missed in 50% (26/52) of the patients and 77% of these patients possessed clinically significant PCa. The sensitivities of both RFs in the validation cohort were ≥ 0.8. Visual PSMA-PET image interpretation may miss small but clinically significant PCa in a relevant number of patients and RFs can be implemented to uncover them. This could be used for guiding personalized treatments.

Identifiants

pubmed: 33210239
doi: 10.1007/s00259-020-05111-3
pii: 10.1007/s00259-020-05111-3
pmc: PMC8113179
doi:

Substances chimiques

Gallium Isotopes 0
Gallium Radioisotopes 0
Oligopeptides 0
Radiopharmaceuticals 0
gallium 68 PSMA-11 0
Edetic Acid 9G34HU7RV0

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

1987-1997

Références

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Auteurs

Constantinos Zamboglou (C)

Department of Radiation Oncology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Robert-Koch Straße 3, 79106, Freiburg, Germany. constantinos.zamboglou@uniklinik-freiburg.de.
German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany. constantinos.zamboglou@uniklinik-freiburg.de.

Alisa S Bettermann (AS)

Department of Radiation Oncology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Robert-Koch Straße 3, 79106, Freiburg, Germany.

Christian Gratzke (C)

Department of Urology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Michael Mix (M)

Department of Nuclear Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Juri Ruf (J)

Department of Nuclear Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Selina Kiefer (S)

Institute for Surgical Pathology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Cordula A Jilg (CA)

Department of Urology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Matthias Benndorf (M)

Department of Radiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Simon Spohn (S)

Department of Radiation Oncology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Robert-Koch Straße 3, 79106, Freiburg, Germany.
German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany.

Thomas F Fassbender (TF)

Department of Nuclear Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Peter Bronsert (P)

German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany.
Institute for Surgical Pathology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.

Mengxia Chen (M)

Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.

Hongqian Guo (H)

Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.

Feng Wang (F)

Department of Nuclear Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.

Xuefeng Qiu (X)

Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.

Anca-Ligia Grosu (AL)

Department of Radiation Oncology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Robert-Koch Straße 3, 79106, Freiburg, Germany.
German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany.

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