Use of Imaging and Biopsy in Prostate Cancer Diagnosis: A Survey From the Asian Prostate Imaging Working Group

Li Jen Wang, Masahiro Jinzaki, Cher Heng Tan, Young Taik Oh, Hiroshi Shinmoto, Chau Hung Lee, Nayana U. Patel, Silvia D. Chang, Antonio C. Westphalen, Chan Kyo Kim*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

Abstract

OBJECTIVE: To elucidate the use of radiological studies, including nuclear medicine, and biopsy for the diagnosis and staging of prostate cancer (PCA) in clinical practice and understand the current status of PCA in Asian countries via an international survey.

MATERIALS AND METHODS: The Asian Prostate Imaging Working Group designed a survey questionnaire with four domains focused on prostate magnetic resonance imaging (MRI), other prostate imaging, prostate biopsy, and PCA backgrounds. The questionnaire was sent to 111 members of professional affiliations in Korea, Japan, Singapore, and Taiwan who were representatives of their working hospitals, and their responses were analyzed.

RESULTS: This survey had a response rate of 97.3% (108/111). The rates of using 3T scanners, antispasmodic agents, laxative drugs, and prostate imaging-reporting and data system reporting for prostate MRI were 21.6%-78.9%, 22.2%-84.2%, 2.3%-26.3%, and 59.5%-100%, respectively. Respondents reported using the highest b-values of 800-2000 sec/mm² and fields of view of 9-30 cm. The prostate MRI examinations per month ranged from 1 to 600, and they were most commonly indicated for biopsy-naïve patients suspected of PCA in Japan and Singapore and staging of proven PCA in Korea and Taiwan. The most commonly used radiotracers for prostate positron emission tomography are prostate-specific membrane antigen in Singapore and fluorodeoxyglucose in three other countries. The most common timing for prostate MRI was before biopsy (29.9%). Prostate-targeted biopsies were performed in 63.8% of hospitals, usually by MRI-ultrasound fusion approach. The most common presentation was localized PCA in all four countries, and it was usually treated with radical prostatectomy.

CONCLUSION: This survey showed the diverse technical details and the availability of imaging and biopsy in the evaluation of PCA. This suggests the need for an educational program for Asian radiologists to promote standardized evidence-based imaging approaches for the diagnosis and staging of PCA.

Original languageEnglish
Pages (from-to)1102-1113
Number of pages12
JournalKorean Journal of Radiology
Volume24
Issue number11
DOIs
StatePublished - 11 2023
Externally publishedYes

Bibliographical note

Copyright © 2023 The Korean Society of Radiology.

Keywords

  • Biopsy
  • Magnetic resonance imaging
  • PET
  • PSMA
  • Prostate cancer
  • Report
  • Survey
  • Image-Guided Biopsy/methods
  • Prostate/diagnostic imaging
  • Humans
  • Male
  • Prostatic Neoplasms/diagnostic imaging
  • Magnetic Resonance Imaging/methods
  • Positron Emission Tomography Computed Tomography
  • Prostate-Specific Antigen/analysis

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