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Yang Y, He X, Zeng Y, Lu Q, Li Y. The learning curve and experience of a novel multi-modal image fusion targeted transperineal prostate biopsy technique using electromagnetic needle tracking under local anesthesia. Front Oncol 2024; 14:1361093. [PMID: 38529371 PMCID: PMC10962208 DOI: 10.3389/fonc.2024.1361093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 02/26/2024] [Indexed: 03/27/2024] Open
Abstract
Background Prostate cancer is the most common malignant tumor of male genitourinary system, and the gold standard for its diagnosis is prostate biopsy. Focusing on the methods and skills of prostate biopsy, we explored the learning curve and experience of a novel magnetic resonance imaging and transrectal ultrasound (mpMRI-TRUS) image fusion transperineal biopsy (TPB) technique using electromagnetic needle tracking under local anesthesia. Methods The clinical and pathological data of 92 patients who underwent targeted TPB from January 2023 to July 2023 in our center were prospectively collected. The cumulative sum (CUSUM) analysis method and the best fitting curve were used to analyze the learning curve of this novel technique, and the clinical characteristics, perioperative data and tumor positive rate of prostate biopsy of patients at different stages of the learning curve were compared. Results With the increase of the number of surgical cases, the overall operative time showed a downward trend. The best fitting curve of CUSUM reached its peak at the twelfth case, which is the minimum cumulative number of surgical cases needed to cross the learning curve of the operation. Taking this as the boundary, the learning curve is divided into two stages: learning improvement stage (group A, 12 cases) and proficiency stage (group B, 80 cases). The surgical time and visual analog scale score during prostate biopsy in group A were significantly higher than those in group B. The visual numerical scale score during prostate biopsy in group A was significantly lower than that in group B. There was no statistically significant difference between group A and group B in the detection rate of csPCa and the incidence of perioperative complications. Conclusion The novel targeted TPB technique is divided into learning improvement stage and proficiency stage, and 12 cases may be the least cumulative number.
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Affiliation(s)
| | | | | | - Qiang Lu
- Department of Urology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Yuanwei Li
- Department of Urology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
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Wang W, Pan B, Ai Y, Li G, Fu Y, Liu Y. ParaCM-PNet: A CNN-tokenized MLP combined parallel dual pyramid network for prostate and prostate cancer segmentation in MRI. Comput Biol Med 2024; 170:107999. [PMID: 38244470 DOI: 10.1016/j.compbiomed.2024.107999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/28/2023] [Accepted: 01/13/2024] [Indexed: 01/22/2024]
Abstract
The precise prostate gland and prostate cancer (PCa) segmentations enable the fusion of magnetic resonance imaging (MRI) and ultrasound imaging (US) to guide robotic prostate biopsy systems. This precise segmentation, applied to preoperative MRI images, is crucial for accurate image registration and automatic localization of the biopsy target. Nevertheless, describing local prostate lesions in MRI remains a challenging and time-consuming task, even for experienced physicians. Therefore, this research work develops a parallel dual-pyramid network that combines convolutional neural networks (CNN) and tokenized multi-layer perceptron (MLP) for automatic segmentation of the prostate gland and clinically significant PCa (csPCa) in MRI. The proposed network consists of two stages. The first stage focuses on prostate segmentation, while the second stage uses a prior partition from a previous stage to detect the cancerous regions. Both stages share a similar network architecture, combining CNN and tokenized MLP as the feature extraction backbone to creating a pyramid-structured network for feature encoding and decoding. By employing CNN layers of different scales, the network generates scale-aware local semantic features, which are integrated into feature maps and inputted into an MLP layer from a global perspective. This facilitates the complementarity between local and global information, capturing richer semantic features. Additionally, the network incorporates an interactive hybrid attention module to enhance the perception of the target area. Experimental results demonstrate the superiority of the proposed network over other state-of-the-art image segmentation methods for segmenting the prostate gland and csPCa tissue in MRI images.
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Affiliation(s)
- Weirong Wang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China
| | - Bo Pan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China
| | - Yue Ai
- Hangzhou Wiseking Medical Robot Co., Ltd, Hangzhou, 310000, China
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Medicine School of Zhejiang University, Hangzhou, 310000, China
| | - Yili Fu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China.
| | - Yanjie Liu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China
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Chung Y, Hong SK. Shifting to transperineal prostate biopsy: A narrative review. Prostate Int 2024; 12:10-14. [PMID: 38523899 PMCID: PMC10960089 DOI: 10.1016/j.prnil.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 03/26/2024] Open
Abstract
To address the limitations and challenges associated with transrectal (TR) biopsy and to present transperineal (TP) biopsy as a viable and potentially safer alternative to TR biopsy. Prostate cancer (PCa) is a significant global health concern. The prevalence of advanced-stage prostate cancer in Asia is higher than that in the United States, emphasizing the need for effective screening and diagnosis methods. The gold standard of diagnosis is a TR biopsy. However, it has limitations due to the risk of infection and potential complications, such as injury to the rectal artery. Efforts have been made to address issues such as false-negative biopsies, under-sampling, and over-sampling through MRI-guided biopsies. However, the TR approach makes it difficult to access the apical and anterior regions of the prostate. TP biopsy has emerged as an alternative to address the limitations of TR biopsy. Nevertheless, a TP biopsy is a painful procedure, requiring the use of general anesthesia and expensive equipment. As a result, it has been perceived as costly and time-consuming. In addition, it requires a steep learning curve. The introduction of local anesthesia such as pudendal nerve block and the adoption of freehand techniques have contributed to the feasibility of performing TP biopsy. Recent research indicates that freehand TP biopsy can yield comparable diagnostic results to template-guided approaches. The diagnostic performance, cancer detection rates, and complication rates of TP biopsy have demonstrated its potential as a safe and effective diagnostic method.
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Affiliation(s)
- Younsoo Chung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Kyu Hong
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
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Brant A, Campi R, Carrion DM, Esperto F, Sze C, Johnson JP, Hu JC, Borregales LD. Findings from an international survey of urology trainee experience with prostate biopsy. BJU Int 2023; 131:705-711. [PMID: 36424894 PMCID: PMC10205912 DOI: 10.1111/bju.15935] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To assess urology trainees' exposure to transperineal prostate biopsy (TP-Bx) and intent to use TP-Bx in practice. SUBJECTS AND METHODS A 34-question survey about prostate biopsy was distributed to urology trainees in the United States and Europe. Primary outcomes were exposure to TP-Bx in training and intent to use TP-Bx post training. Exposure to transrectal prostate biopsy (TR-Bx) and magnetic resonance imaging-targeted biopsy (MRI-Bx) was also assessed. Survey answers were compared between groups as categorical variables using Fisher's exact test. Multivariable logistic regression was used to identify factors associated with intent of performing TP-Bx post training. RESULTS A total of 658 trainees from 19 countries completed the survey. Of these, 313 trainees (48%) reported exposure to TP-Bx, 370 (56%) reported exposure to MRI-Bx, and 572 (87%) reported exposure to TR-Bx. There was significant heterogeneity in TP-Bx exposure among countries (P < 0.001), with the highest prevalence in Italy (72%) and the lowest prevalence in Greece (4%). Intent to perform TP-Bx post training was higher in those exposed to TP-Bx during training (89% vs 58%; P < 0.001) and did not differ between trainees in postgraduate year (PGY) 1-3 vs those in PGY ≥4 (73% vs 72%; P = 0.7). On multivariable regression, exposure to TP-Bx in training was independently associated with increased intent to perform TP-Bx post training (odds ratio 5.09, 95% confidence interval 3.29-8.03; P < 0.001). CONCLUSIONS Fewer than half of 658 surveyed urology trainees reported exposure to TP-Bx, with significant heterogeneity among countries. Greater experience with TP-Bx in training was associated with greater intent to perform TP-Bx post training. A minimum requirement of TP-Bx cases during urological training may increase resident familiarity and adoption of this guideline-endorsed prostate biopsy approach.
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Affiliation(s)
- Aaron Brant
- Department of Urology, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Riccardo Campi
- Unit of Urological Robotic Surgery and Renal Transplantation, University of Florence, Careggi Hospital, Florence, Italy
| | - Diego M. Carrion
- Department of Urology, Torrejon University Hospital, Madrid, Spain
| | - Francesco Esperto
- Department of Urology, Campus Biomedico, University of Rome, Rome, Italy
| | - Christina Sze
- Department of Urology, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Jeffrey P. Johnson
- Department of Urology, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Jim C. Hu
- Department of Urology, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Leonardo D. Borregales
- Department of Urology, Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
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Robot-Assisted Magnetic Resonance Imaging-Targeted versus Systematic Prostate Biopsy; Systematic Review and Meta-Analysis. Cancers (Basel) 2023; 15:cancers15041181. [PMID: 36831524 PMCID: PMC9954527 DOI: 10.3390/cancers15041181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
INTRODUCTION Robot-assisted devices have been recently developed for use in prostate biopsy. However, it is possible advantages over standard biopsy remain unclear. We aimed to assess the diagnostic performance and safety of robot-assisted targeted (RA-TB) and systematic prostate biopsies (RA-SB). METHODS A systematic literature search was performed in MEDLINE and Scopus databases. The detailed search strategy is available at Prospero (CRD42021269290). The primary outcome was the clinically significant prostate cancer (PCa) detection rate. The secondary outcomes included the overall detection rate of PCa, cancer detection rate per core, and complications. RESULTS The clinically significant cancer detection rate, overall cancer detection rate, and "per patient" did not significantly differ between RA-TB and RA-SB [OR = 1.02 (95% CI 0.83; 1.26), p = 0.05, I2 = 62% and OR = 0.95 (95% CI 0.78; 1.17), p = 0.17, I2 = 40%, respectively]. There were no differences in the clinically insignificant cancer detection rate "per patient" between RA-TB and RA-SB [OR = 0.81 (95% CI 0.54; 1.21), p = 0.31, I2 = 0%]. RA-TB had a significantly higher cancer detection rate "per core" [OR = 3.01 (95% CI 2.77; 3.27), p < 0.0001, I2 = 96%]. CONCLUSION RA-TB and RA-SB are both technically feasible and have comparable clinical significance and overall PCa detection rates.
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Basourakos SP, Alshak MN, Lewicki PJ, Cheng E, Tzeng M, DeRosa AP, Allaway MJ, Ross AE, Schaeffer EM, Patel HD, Hu JC, Gorin MA. Role of Prophylactic Antibiotics in Transperineal Prostate Biopsy: A Systematic Review and Meta-analysis. EUR UROL SUPPL 2022; 37:53-63. [PMID: 35243391 PMCID: PMC8883190 DOI: 10.1016/j.euros.2022.01.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2022] [Indexed: 12/25/2022] Open
Abstract
Context Objective Evidence acquisition Evidence synthesis Conclusions Patient summary
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Abstract
PURPOSE OF REVIEW The goal of this study is to review recent findings and evaluate the utility of MRI transrectal ultrasound fusion biopsy (FBx) techniques and discuss future directions. RECENT FINDINGS FBx detects significantly higher rates of clinically significant prostate cancer (csPCa) than ultrasound-guided systematic prostate biopsy (SBx), particularly in repeat biopsy settings. FBx has also been shown to detect significantly lower rates of clinically insignificant prostate cancer. In addition, a dedicated prostate MRI can assist in more accurately predicting the Gleason score and provide further information regarding the index cancer location, prostate volume, and clinical stage. The ability to accurately evaluate specific lesions is vital to both focal therapy and active surveillance, for treatment selection, planning, and adequate follow-up. FBx has been demonstrated in multiple high-quality studies to have improved performance in diagnosis of csPCa compared to SBx. The combination of FBx with novel technologies including radiomics, prostate-specific membrane antigen positron emission tomography (PSMA PET), and high-resolution micro-ultrasound may have the potential to further enhance this performance.
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