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Frego N, Contieri R, Fasulo V, Maffei D, Avolio PP, Arena P, Beatrici E, Sordelli F, De Carne F, Lazzeri M, Saita A, Hurle R, Buffi NM, Casale P, Lughezzani G. Development of a microultrasound-based nomogram to predict extra-prostatic extension in patients with prostate cancer undergoing robot-assisted radical prostatectomy. Urol Oncol 2024; 42:159.e9-159.e16. [PMID: 38423852 DOI: 10.1016/j.urolonc.2024.01.033] [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: 11/07/2023] [Revised: 01/12/2024] [Accepted: 01/26/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVES To develop a microultrasound-based nomogram including clinicopathological parameters and microultrasound findings to predict the presence of extra-prostatic extension and guide the grade of nerve-sparing. MATERIAL AND METHODS All patients underwent microultrasound the day before robot-assisted radical prostatectomy. Variables significantly associated with extra-prostatic extension at univariable analysis were used to build the multivariable logistic model, and the regression coefficients were used to develop the nomogram. The model was subjected to 1000 bootstrap resamples for internal validation. The performance of the microultrasound-based model was evaluated using the area under the curve (AUC) of the receiver operating characteristic (ROC) curve, calibration plot, and decision curve analysis (DCA). RESULTS Overall, 122/295 (41.4%) patients had a diagnosis of extra-prostatic extension on definitive pathology. Microultrasound correctly identify extra-prostatic extension in 84/122 (68.9%) cases showing a sensitivity and a specificity of 68.9% and 84.4%, with an AUC of 76.6%. After 1000 bootstrap resamples, the predictive accuracy of the microultrasound-based model was 85.9%. The calibration plot showed a satisfactory concordance between predicted probabilities and observed frequencies of extra-prostatic extension. The DCA showed a higher clinical net-benefit compared to the model including only clinical parameters. Considering a 4% cut-off, nerve-sparing was recommended in 173 (58.6%) patients and extra-prostatic extension was detected in 32 (18.5%) of them. CONCLUSION We developed a microultrasound-based nomogram for the prediction of extra-prostatic extension that could aid in the decision whether to preserve or not neurovascular bundles. External validation and a direct comparison with mpMRI-based nomogram is crucial to corroborate our results.
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Affiliation(s)
- Nicola Frego
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Roberto Contieri
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Vittorio Fasulo
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Davide Maffei
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Pier Paolo Avolio
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Paola Arena
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Edoardo Beatrici
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Federica Sordelli
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Fabio De Carne
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
| | - Massimo Lazzeri
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy
| | - Alberto Saita
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy
| | - Rodolfo Hurle
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy
| | - Nicolò Maria Buffi
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy.
| | - Paolo Casale
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy
| | - Giovanni Lughezzani
- Department of Urology, IRCCS - Humanitas Research Hospital, Milan, Italy; Department of Biomedical Science, Humanitas University, Milan, Italy
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Lorusso V, Talso M, Palmisano F, Branger N, Granata AM, Fiori C, Gregori A, Pignot G, Walz J. Is imaging accurate enough to detect index lesion in prostate cancer? Analysis of the performance of MRI and other imaging modalities. Minerva Urol Nephrol 2024; 76:22-30. [PMID: 37817480 DOI: 10.23736/s2724-6051.23.05285-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Prostate imaging techniques have progressed across the years allowing for a better detection and characterization of prostate cancer (PCa) lesions. These advancements have led to the possibility to also improve and tailor the treatments on the most aggressive lesion, defined as Index Lesion (IL), to reduce morbidity. The IL is, indeed, considered as the entity which encompass the most aggressive features in prostate cancer disease. Multiparametric magnetic resonance imaging (mpMRI) has emerged as the suggested tool to detect the disease and plan treatments, including those under investigation such as focal therapy (FT). Our review aimed to query the literature on the ability of mpMRI in IL detection and to explore the future perspectives in PCa IL diagnosis. A review of the literature was performed from January 2010 to July 2023. All studies investigating the performance of mpMRI and other main imaging techniques able to detect the IL were assessed and evaluated. mpMRI performs well in the detection of IL with a sensitivity which reaches 71% to 94% among the different studies. However, mpMRI seems to have limited sensitivity in the detection of small tumours (<0.5 mL) and low-grade histology lesions. To overcome these limitations other diagnostic imaging techniques have been proposed. Multiparametric Ultrasound has shown results comparable to mpMRI while detecting 4.3% fewer clinically significant PCa (P=0.042). Positron emission tomography-based modalities using PSMA seems to have higher sensitivity than mpMRI, being able to yield from 13.5% to 18.2% additional cancers. MRI has emerged as the recommended tool since most of the IL can be easily identified, and is the imaging of choice while selecting patients for FT. Other imaging modalities has been proposed to improve PCa lesions detection, but results need to be confirmed by ongoing randomized controlled trial.
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Affiliation(s)
- Vito Lorusso
- Department of Urology, Institut Paoli-Calmettes Cancer Center, Marseille, France -
- Department of Urology, ASST Fatebenefratelli-Sacco, Milan, Italy -
| | - Michele Talso
- Department of Urology, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Franco Palmisano
- Department of Urology, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Nicolas Branger
- Department of Urology, Institut Paoli-Calmettes Cancer Center, Marseille, France
| | | | - Cristian Fiori
- Department of Urology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Turin, Italy
| | - Andrea Gregori
- Department of Urology, ASST Fatebenefratelli-Sacco, Milan, Italy
- University of Milan, Milan, Italy
| | - Geraldine Pignot
- Department of Urology, Institut Paoli-Calmettes Cancer Center, Marseille, France
| | - Jochen Walz
- Department of Urology, Institut Paoli-Calmettes Cancer Center, Marseille, France
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3
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Albers P, Bennett J, Evans M, Martin ES, Wang B, Broomfield S, Martín AM, Tu W, Fung C, Kinnaird A. Value of Incremental Biopsy Cores for Microultrasound Targeted Prostate Biopsies. Urology 2024; 184:142-148. [PMID: 38052325 DOI: 10.1016/j.urology.2023.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/07/2023]
Abstract
OBJECTIVE To determine the optimal number of cores needed during microultrasound-informed prostate biopsy for the detection of clinically significant prostate cancer (csPCa, defined as Gleason Grade Group ≥2). METHODS A retrospective review of 1011 consecutive patients between September 2021 and July 2023 at our institution were identified; 536 underwent microultrasound biopsy and 475 underwent magnetic resonance imaging (MRI)/ultrasound (US) targeted biopsy. Lesions were given a Prostate Risk Identification using Microultrasound (PRI-MUS) score, with lesions PRI-MUS ≥3 targeted. MRI lesions were scored with Prostate Imaging-Reporting and Data System (PI-RADS) and lesions PI-RADS ≥3 were targeted. The primary outcome is the detection of csPCa stratified by number of cores. RESULTS One hundred thirty-eight patients underwent targeted biopsies for microultrasound only lesions, 182 for microultrasound and MRI lesions and 426 underwent MRI/US for MRI lesions. The first targeted core detected 78.0% (46/59), 77.8% (63/81), and 78.8% (216/274) of csPCa for microultrasound, microultrasound+MRI, and MRI/US, respectively. Comparing first to third core, there was not a significant difference in overall detection of csPCa by microultrasound, though MRI/US was significantly different (28.4% vs 36.4% P = .12, 32.5% vs 41.8% P = .06, 42.5% vs 53.9% P < .001 for microultrasound, microultrasound+MRI, and MRI/US, respectively). PI-RADS 3 and PRI-MUS 3 lesions had lower first core detection rates compared to PI-RADS 5 and PRI-MUS 5 lesions (44.4% vs 85.4% P = .01, 65.2% vs 81.4% P = .14, 60% vs 83.1% P = .07 for microultrasound, microultrasound+MRI, and MRI/US, respectively). CONCLUSION A three-core targeted biopsy per microultrasound lesion improves detection rate of csPCa and should be considered to improve diagnostic accuracy.
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Affiliation(s)
- Patrick Albers
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Jacob Bennett
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Moira Evans
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Ella St Martin
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Betty Wang
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Stacey Broomfield
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Anaïs Medina Martín
- Alberta Prostate Cancer Research Initiative (APCaRI), Edmonton, Alberta, Canada
| | - Wendy Tu
- Department of Radiology & Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada
| | - Christopher Fung
- Department of Radiology & Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada
| | - Adam Kinnaird
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada; Alberta Prostate Cancer Research Initiative (APCaRI), Edmonton, Alberta, Canada; Cancer Research Institute of Northern Alberta (CRINA), Edmonton, Alberta, Canada; Alberta Centre for Urologic Research and Excellence (ACURE), Edmonton, Alberta, Canada; Department of Oncology, University of Alberta, Edmonton, Alberta, Canada.
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4
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Dias AB, Ghai S. Prostate Cancer Diagnosis with Micro-ultrasound: What We Know now and New Horizons. Radiol Clin North Am 2024; 62:189-197. [PMID: 37973243 DOI: 10.1016/j.rcl.2023.06.014] [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] [Indexed: 11/19/2023]
Abstract
Prostate cancer (PCa) is the most common non-cutaneous cancer diagnosed in males. Multiparametric Magnetic Resonance Imaging (mpMRI) with targeted biopsy can detect PCa and is currently the recommended initial test in men at risk for PCa. Micro-Ultrasound (MicroUS) is a novel high-resolution 29-MHz ultrasound with ∼three times greater resolution of conventional transrectal ultrasound (TRUS) resolution. Preliminary data suggest improved accuracy of ultrasound for targeted prostate biopsy. A growing body of evidence has become available supporting MicroUS as a potentially time and cost saving modality for PCa detection, with early results suggesting comparable accuracy to mpMRI. Additionally, microUS allows real-time visualization for accurate targeted biopsy. It is not yet clear whether MicroUS should be used on its own or in combination with mpMRI for prostate cancer detection. The ongoing OPTIMUM randomized controlled trial will help to establish the role of MicroUS in the diagnostic algorithm for the detection of clinically significant (cs)-PCa. Early data also indicate this imaging modality may have a role in local staging (eg, extracapsular extension prediction) and active surveillance of PCa. MicroUS has also the potential to add value to biparametric (bp) MRI, and may represent a promising tool for guidance of focal therapy in the near future.
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Affiliation(s)
- Adriano Basso Dias
- Joint Department of Medical Imaging, University Medical Imaging Toronto, University Health Network-Mount Sinai Hospital-Women's College Hospital, University of Toronto, 585 University Avenue, 1PMB-298, Toronto, ON M5G 2N2, Canada
| | - Sangeet Ghai
- Joint Department of Medical Imaging, University Medical Imaging Toronto, University Health Network-Mount Sinai Hospital-Women's College Hospital, University of Toronto, 585 University Avenue, 1PMB-298, Toronto, ON M5G 2N2, Canada.
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5
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Michael G, Maciej W. A current role status of micro-ultrasound imaging in prostate cancer diagnosis. Clin Hemorheol Microcirc 2023:CH232024. [PMID: 38160349 DOI: 10.3233/ch-232024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Recently diagnostic field in medicine was enriched by advances in ultrasonography (US) technology, which led to establishment of novel modalities, one of which is micro-ultrasound. Results demonstrated by early studies have been promising, simultaneously rising a question if those new modalities could become an alternative in diagnosis of prostatic carcinoma (PCa). To answer this question, several studies have been conducted where micro-ultrasound have been compared to standard diagnostic tools, such as conventional TRUS or mpMRI. Nevertheless, new technology presents with some limitations, which include inconsistent results, necessity for specialized equipment, need of training for investigators to understand the findings, and external validation. In this publication, we have identified studies that provided evaluation of the accuracy and efficiency of the micro-ultrasound technology. Additionally, analysis of the results provided a better understanding of the novel imaging tool when compared standard modalities in diagnosis of PCa. Increasing number of studies demonstrated that micro-ultrasound carries high detection rate of PCa and clinically significant prostatic cancer (csPCa), suggesting a similar performance to mpMRI and even showing superiority over conventional TRUS. Recent studies have also showed that micro-ultrasound takes active role in improving the detection of csPCa and guidance for prostate biopsy (PBx) as well as further treatment. Moreover, certain practical aspects such as lower costs, decreased waiting time, real-time imaging and application of the imaging tool for patients that are not suitable for mpMRI (contrast allergy, prosthetics etc.) are significant advantages. Analysis of the results still does not provide clear answer whether micro-ultrasound outperforms mpMRI. Further studies are necessary in order to completely understand the potential of this new technology.
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Affiliation(s)
- Grynkiewicz Michael
- Department of Urology, Pediatric Urology and Robot Assisted Minimally Invasive Urology, Sozialstiftung Bamberg, Hospital Bamberg, Bamberg, Germany
| | - Wiewióra Maciej
- Department of Cardiac Vascular and Endovascular Surgery and Transplantology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, Poland
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Avolio PP, Lughezzani G, Anidjar M, Hassan T, Rompré-Brodeur A, Buffi NM, Lazzeri M, Sanchez-Salas R. The diagnostic accuracy of micro-ultrasound for prostate cancer diagnosis: a review. World J Urol 2023; 41:3267-3276. [PMID: 37555985 DOI: 10.1007/s00345-023-04521-w] [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: 03/30/2023] [Accepted: 07/02/2023] [Indexed: 08/10/2023] Open
Abstract
PURPOSE Micro-UltraSound (microUS) is a new imaging modality capable of identifying and targeting suspicious areas, which might further increase the diagnostic yield of prostate biopsy (PBx). Aim of this review is to provide insights into the usefulness of microUS for the sub-stratification of prostate cancer (PCa), clinically significant PCa (i.e., any Gleason score ≥ 7 PCa; csPCa) along with non-organ-confined disease in patients undergoing PBx. METHODS A PubMed literature search was performed using keywords: prostate cancer diagnosis, prostate cancer diagnosis surveillance, systematic biopsy, target biopsy, micro-ultrasound, and prostate risk identification using micro-ultrasound. RESULTS MicroUS could significantly improve multiparametric magnetic resonance imaging (mpMRI) findings by adding valuable anatomical and pathological information provided by real-time examination. Furthermore, microUS target biopsy could replace systematic biopsy in clinical practice by reducing the detection of clinically insignificant (ciPCa) and increasing that of csPCa. Finally, microUS may be useful in predicting the presence of non-organ confined PCa before radical prostatectomy and it could also be an effective add-on tool for patient monitoring within the active surveillance program. CONCLUSION MicroUS may represent an attractive step forward for the management of csPCa as a complementary or alternative tool to mpMRI. Nevertheless, further longitudinal studies are warranted, and the strength of the evidence is still suboptimal to provide clear recommendations for daily clinical practice.
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Affiliation(s)
- Pier Paolo Avolio
- Division of Urology, Department of Surgery, McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
| | - Giovanni Lughezzani
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele, Milan, Italy
| | - Maurice Anidjar
- Division of Urology, Department of Surgery, McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Toufic Hassan
- Division of Urology, Department of Surgery, McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Alexis Rompré-Brodeur
- Division of Urology, Department of Surgery, McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Nicolò Maria Buffi
- Division of Urology, Department of Surgery, McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Massimo Lazzeri
- Department of Urology, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Rafael Sanchez-Salas
- Division of Urology, Department of Surgery, McGill University Health Centre, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada.
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Schaer S, Rakauskas A, Dagher J, La Rosa S, Pensa J, Brisbane W, Marks L, Kinnaird A, Abouassaly R, Klein E, Thomas L, Meuwly JY, Parker P, Roth B, Valerio M. Assessing cancer risk in the anterior part of the prostate using micro-ultrasound: validation of a novel distinct protocol. World J Urol 2023; 41:3325-3331. [PMID: 37712968 PMCID: PMC10632243 DOI: 10.1007/s00345-023-04591-w] [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: 06/19/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023] Open
Abstract
PURPOSE To develop and validate a micro-ultrasound risk score that predicts the likelihood of significant prostate cancer in the anterior zone. METHODS Patients were enrolled from three expert institutions familiar with micro-ultrasound. The study was conducted in two phases. First, the PRI-MUS anterior score was developed by assessing selected prostate videos from patients who subsequently underwent radical prostatectomy. Second, seven urology readers with varying levels of experience in micro-ultrasound examination evaluated prostate loops according to the PRI-MUS anterior score. Each reader watched the videos and recorded the likelihood of the presence of significant cancer in the anterior part of the prostate in a three-point scale. The coherence among the readers was calculated using the Fleiss kappa and the Cronbach alpha. RESULTS A total of 102 selected prostate scans were used to develop the risk assessment for anterior zone cancer in the prostate. The score comprised three categories: likely, equivocal, and unlikely. The median (IQR) sensitivity, specificity, positive predictive value, and negative predictive value for the seven readers were 72% (68-84), 68% (64-84), 75% (72-81), and 73% (71-80), respectively. The mean SD ROC AUC was 0.75 ± 2%, while the Fleiss kappa and the Cronbach alpha were 0.179 and 0.56, respectively. CONCLUSION Micro-ultrasound can detect cancerous lesions in the anterior part of the prostate. When combined with the PRI-MUS protocol to assess the peripheral part, it enables an assessment of the entire prostate gland. Pending external validation, the PRI-MUS anterior score developed in this study might be implemented in clinical practice.
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Affiliation(s)
- Sandy Schaer
- Unit of Urology, Department of Surgery, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011, Lausanne, Switzerland.
| | - Arnas Rakauskas
- Unit of Urology, Department of Surgery, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011, Lausanne, Switzerland
| | - Julien Dagher
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Stefano La Rosa
- Institute of Pathology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Pathology Unit, Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy
| | - Jake Pensa
- UCLA Institute of Urologic Oncology, Los Angeles, USA
| | | | - Leonard Marks
- UCLA Institute of Urologic Oncology, Los Angeles, USA
| | - Adam Kinnaird
- UCLA Institute of Urologic Oncology, Los Angeles, USA
- Division of Urology, Department of Surgery, University of Alberta, Edmonton, Canada
| | - Robert Abouassaly
- Glickman Urological & Kidney Institute, Cleveland Clinic, Cleveland, USA
| | - Eric Klein
- Glickman Urological & Kidney Institute, Cleveland Clinic, Cleveland, USA
| | - Lewis Thomas
- Glickman Urological & Kidney Institute, Cleveland Clinic, Cleveland, USA
- Unit of Urology, Department of Surgery, Washington University in St-Louis, St-Louis, USA
| | - Jean-Yves Meuwly
- Department of Radiology, Lausanne University Hospital (CHUC), Lausanne, Switzerland
| | - Pamela Parker
- Department of Radiology, Hull University Teaching Hospitals NHS Trust, Hull, UK
| | - Beat Roth
- Unit of Urology, Department of Surgery, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011, Lausanne, Switzerland
| | - Massimo Valerio
- Unit of Urology, Department of Surgery, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011, Lausanne, Switzerland
- Department of Urology, Geneva University Hospital (HUG), Geneva, Switzerland
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8
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Chaddad A, Tan G, Liang X, Hassan L, Rathore S, Desrosiers C, Katib Y, Niazi T. Advancements in MRI-Based Radiomics and Artificial Intelligence for Prostate Cancer: A Comprehensive Review and Future Prospects. Cancers (Basel) 2023; 15:3839. [PMID: 37568655 PMCID: PMC10416937 DOI: 10.3390/cancers15153839] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The use of multiparametric magnetic resonance imaging (mpMRI) has become a common technique used in guiding biopsy and developing treatment plans for prostate lesions. While this technique is effective, non-invasive methods such as radiomics have gained popularity for extracting imaging features to develop predictive models for clinical tasks. The aim is to minimize invasive processes for improved management of prostate cancer (PCa). This study reviews recent research progress in MRI-based radiomics for PCa, including the radiomics pipeline and potential factors affecting personalized diagnosis. The integration of artificial intelligence (AI) with medical imaging is also discussed, in line with the development trend of radiogenomics and multi-omics. The survey highlights the need for more data from multiple institutions to avoid bias and generalize the predictive model. The AI-based radiomics model is considered a promising clinical tool with good prospects for application.
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Affiliation(s)
- Ahmad Chaddad
- School of Artificial Intelligence, Guilin Universiy of Electronic Technology, Guilin 541004, China
- The Laboratory for Imagery, Vision and Artificial Intelligence, École de Technologie Supérieure (ETS), Montreal, QC H3C 1K3, Canada
| | - Guina Tan
- School of Artificial Intelligence, Guilin Universiy of Electronic Technology, Guilin 541004, China
| | - Xiaojuan Liang
- School of Artificial Intelligence, Guilin Universiy of Electronic Technology, Guilin 541004, China
| | - Lama Hassan
- School of Artificial Intelligence, Guilin Universiy of Electronic Technology, Guilin 541004, China
| | | | - Christian Desrosiers
- The Laboratory for Imagery, Vision and Artificial Intelligence, École de Technologie Supérieure (ETS), Montreal, QC H3C 1K3, Canada
| | - Yousef Katib
- Department of Radiology, Taibah University, Al Madinah 42361, Saudi Arabia
| | - Tamim Niazi
- Lady Davis Institute for Medical Research, McGill University, Montreal, QC H3T 1E2, Canada
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9
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Dariane C, Ploussard G, Barret E, Beauval JB, Brureau L, Créhange G, Fromont G, Gauthé M, Mathieu R, Renard-Penna R, Roubaud G, Ruffion A, Sargos P, Rouprêt M, Fiard G. Micro-ultrasound-guided biopsies versus systematic biopsies in the detection of prostate cancer: a systematic review and meta-analysis. World J Urol 2023; 41:641-651. [PMID: 35835886 DOI: 10.1007/s00345-022-04087-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/28/2022] [Indexed: 10/17/2022] Open
Abstract
PURPOSE The diagnosis of prostate cancer (PCa) still relies on the performance of both targeted (TB) and systematic biopsies (SB). Micro-ultrasound (mUS)-guided biopsies demonstrated a high sensitivity in detecting clinically significant prostate cancer (csPCa), which could be comparable to that of magnetic resonance imaging (MRI)-TB, but their added value has not been compared to SB yet. METHODS We conducted a systematic review and meta-analysis, based on Medline, EMBASE, Scopus, and Web of Science, in accordance with PRISMA guidelines, to compare mUS-guided biopsies to SB. RESULTS Based on the literature search of 2957 articles, 15 met the inclusion criteria (2967 patients). Most patients underwent mUS-guided biopsies, followed by MRI-TB and SB. Respectively 5 (n = 670) and 4 (n = 467) studies, providing raw data on SB, were included in a random-effect meta-analysis of the detection rate of csPCa, i.e. Gleason Grade Group (GGG) ≥ 2 or non-csPCa (GGG = 1). Overall, PCa was detected in 56-71% of men, with 31.3-49% having csPCa and 17-25.4% having non-csPCa. Regarding csPCa, mUS-guided biopsies identified 196 and SB 169 cases (Detection Ratio (DR): 1.18, 95% CI 0.83-1.68, I2 = 69%), favoring mUS-guided biopsies; regarding non-csPCa, mUS-guided biopsies identified 62 and SB 115 cases (DR: 0.55, 95% CI 0.41-0.73, I2 = 0%), also favoring mUS-guided biopsies by decreasing unnecessary diagnosis. CONCLUSION Micro-ultrasound-guided biopsies compared favorably with SB for the detection of csPCa and detected fewer non-csPCa than SB. Prospective trials are awaited to confirm the interest of adding mUS-guided biopsies to MRI-TB to optimize csPCa detection without increasing overdiagnosis of non-csPCa.
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Affiliation(s)
- Charles Dariane
- Department of Urology, Hôpital Européen Georges-Pompidou, APHP, Paris-Paris Cité University-U1151 Inserm-INEM, Necker, Paris, France.
| | - Guillaume Ploussard
- Department of Urology, La Croix du Sud Hôpital, Quint Fonsegrives, France
- Department of Urology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
- IUCT-O, Toulouse, France
| | - Eric Barret
- Department of Urology, Institut Mutualiste Montsouris, Paris, France
| | - Jean-Baptiste Beauval
- Department of Urology, La Croix du Sud Hôpital, Quint Fonsegrives, France
- IUCT-O, Toulouse, France
| | - Laurent Brureau
- Department of Urology, CHU de Pointe-À-Pitre, University of Antilles, University of Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, 97110, Pointe-à-Pitre, France
| | | | | | - Mathieu Gauthé
- Department of Nuclear Medicine, Scintep-Institut Daniel Hollard, Grenoble, France
| | | | - Raphaële Renard-Penna
- AP-HP, Radiology, Pitie-Salpetriere Hospital, Sorbonne University, 75013, Paris, France
| | - Guilhem Roubaud
- Department of Medical Oncology, Institut Bergonié, 33000, Bordeaux, France
| | - Alain Ruffion
- Service d'urologie Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France
- Equipe 2, Centre d'Innovation en Cancérologie de Lyon (EA 3738 CICLY), Faculté de médecine Lyon Sud, Université Lyon 1, Lyon, France
| | - Paul Sargos
- Department of Radiotherapy, Institut Bergonié, 33000, Bordeaux, France
| | - Morgan Rouprêt
- GRC 5 Predictive Onco-Uro, AP-HP, Urology, Pitie-Salpetriere Hospital, Sorbonne University, 75013, Paris, France
| | - Gaëlle Fiard
- Department of Urology, Grenoble Alpes University Hospital, Université Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, Grenoble, France
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10
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Basso Dias A, Ghai S. Micro-Ultrasound: Current Role in Prostate Cancer Diagnosis and Future Possibilities. Cancers (Basel) 2023; 15:cancers15041280. [PMID: 36831622 PMCID: PMC9954149 DOI: 10.3390/cancers15041280] [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: 12/30/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023] Open
Abstract
Prostate Cancer (PCa) is the second most common cancer in men. Population screening using prostate specific antigen (PSA) blood test and digital rectal exam (DRE) is recommended by the NCCN, EAU and other prominent clinical guidelines. While MRI is the recommended initial test in men at risk for PCa, micro-Ultrasound (MicroUS) is a novel high resolution ultrasound technology that has shown promise in PCa detection. This article provides a narrative review of the studies to date which have been conducted to evaluate the functionality and efficacy of MicroUS within the patient care pathway for prostate cancer. A total of 13 relevant publications comparing detection of csPCa between MicroUS and mpMRI were selected. An amount of 4 publications referring to use of MicroUS for other indications were found. Each publication was evaluated for risk of bias and applicability using the Quality Assessment of Diagnostic Accuracy (QUADAS-2) tool. The studies reviewed conclude that MicroUS detection rates for clinically significant prostate cancer diagnosis are comparable to the detection rates of mpMRI guided biopsy procedures. While the existing literature indicates that MicroUS should replace conventional TRUS for prostate imaging and biopsy, it is not yet clear whether MicroUS should be used on its own or in conjunction with mpMRI for augmenting prostate cancer detection. The ongoing OPTIMUM trial will provide evidence on how best to utilize this new technology. Early data also suggest this flexible new imaging modality has a place in local staging and active surveillance of prostate cancer as well as in bladder cancer staging.
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11
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Martel P, Rakauskas A, Dagher J, La Rosa S, Meuwly JY, Roth B, Valerio M. The benefit of adopting Microultrasound in the prostate cancer imaging pathway: A lesion-by-lesion analysis: Biopsies prostatiques guidée par micro-échographie, quel bénéfice ? Une analyse lésion par lésion. Prog Urol 2022; 32:6S26-6S32. [PMID: 36719643 DOI: 10.1016/s1166-7087(22)00172-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
INTRODUCTION - Microultrasound (MicroUS) is a novel imaging modality relying on a high-frequency transducer which confers a three-fold improvement in spatial resolution as compared with conventional transrectal ultrasound. We evaluated the diagnostic value of MRI-MicroUS fusion biopsy and determined the additional benefit of employing MicroUS. METHODS - Retrospective analysis of consecutive treatment-naïve men undergoing MRI-MicroUS fusion biopsy between May 2018 and March 2019. Pre-biopsy MRI was systematically reviewed in a dedicated meeting where suspicious lesions PIRADS ≥ 3 were registered and uploaded in the ExactVu MicroUS device. MRI and MicroUS lesions were individually marked in a PIRADS v2 scheme. The biopsy protocol included MRI-MicroUS fusion and MicroUS targeted biopsies; systematic biopsies were performed at clinician's discretion. The diagnostic value was evaluated in terms of detection rate of clinically significant prostate cancer, defined as Gleason pattern ≥ 4 at histology. RESULTS - In all, 148 patients with a median age of 69 years (IQR 63-74) and median PSA density of 0.16 ng/ml/cc (0.10-0.23) were included. Clinically significant cancer was detected in 42.5% (63/148) patients. MRI detected 89 lesions in the peripheral zone; 73% (65/89) were visible on MicroUS. Clinically significant cancer was detected in 46.1% (30/65) MRI and MicroUS visible lesions, and in 4.2% (1/24) lesions only visible on mpMRI. MicroUS additionally identified 35 suspicious lesions non-visible on MRI of which clinically significant cancer was present in 25.7% (9/35). CONCLUSION - Adding MicroUS to the conventional pathway seems to increase the detection rate of clinically significant disease in unselected men undergoing biopsy. © 2022 Elsevier Masson SAS. All rights reserved.
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Affiliation(s)
- P Martel
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland
| | - A Rakauskas
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland
| | - J Dagher
- Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland
| | - S La Rosa
- Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland; Pathology Unit, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - J Y Meuwly
- Department of Radiology, Lausanne University Hospital, Lausanne, Switzerland
| | - B Roth
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland
| | - M Valerio
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland.
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12
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Martel P, Rakauskas A, Dagher J, La Rosa S, Meuwly JY, Roth B, Valerio M. WITHDRAWN: The benefit of adopting Microultrasound in the prostate cancer imaging pathway : A lesion-by-lesion analysis. Prog Urol 2022:S1166-7087(22)00066-5. [PMID: 35292179 DOI: 10.1016/j.purol.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/08/2022] [Accepted: 02/17/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Microultrasound (MicroUS) is a novel imaging modality relying on a high-frequency transducer which confers a three-fold improvement in spatial resolution as compared with conventional transrectal ultrasound. We evaluated the diagnostic value of MRI-MicroUS fusion biopsy and determined the additional benefit of employing MicroUS. METHODS Retrospective analysis of consecutive treatment-naïve men undergoing MRI-MicroUS fusion biopsy between May 2018 and March 2019. Pre-biopsy MRI was systematically reviewed in a dedicated meeting where suspicious lesions PIRADS≥3 were registered and uploaded in the ExactVu MicroUS device. MRI and MicroUS lesions were individually marked in a PIRADS v2 scheme. The biopsy protocol included MRI-MicroUS fusion and MicroUS targeted biopsies; systematic biopsies were performed at clinician's discretion. The diagnostic value was evaluated in terms of detection rate of clinically significant prostate cancer, defined as Gleason pattern≥4 at histology. RESULTS In all, 148 patients with a median age of 69 years (IQR 63-74) and median PSA density of 0.16ng/ml/cc (0.10-0.23) were included. Clinically significant cancer was detected in 42.5% (63/148) patients. MRI detected 89 lesions in the peripheral zone; 73% (65/89) were visible on MicroUS. Clinically significant cancer was detected in 46.1% (30/65) MRI and MicroUS visible lesions, and in 4.2% (1/24) lesions only visible on mpMRI. MicroUS additionally identified 35 suspicious lesions non-visible on MRI of which clinically significant cancer was present in 25.7% (9/35). CONCLUSION Adding MicroUS to the conventional pathway seems to increase the detection rate of clinically significant disease in unselected men undergoing biopsy.
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Affiliation(s)
- P Martel
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland
| | - A Rakauskas
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland
| | - J Dagher
- Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland
| | - S La Rosa
- Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland; Pathology Unit, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - J Y Meuwly
- Department of Radiology, Lausanne University Hospital, Lausanne, Switzerland
| | - B Roth
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland
| | - M Valerio
- Department of Urology, Lausanne University Hospital, Lausanne, Switzerland.
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