PI-QUAL version 2: an update of a standardised scoring system for the assessment of image quality of prostate MRI.

Multiparametric MRI is the optimal primary investigation when prostate cancer is suspected, and its ability to rule in and rule out clinically significant disease relies on high-quality anatomical and functional images. Avenues for achieving consistent high-quality acquisitions include meticulous patient preparation, scanner setup, optimised pulse sequences, personnel training, and artificial intelligence systems. The impact of these interventions on the final images needs to be quantified. The prostate imaging quality (PI-QUAL) scoring system was the first standardised quantification method that demonstrated the potential for clinical benefit by relating image quality to cancer detection ability by MRI. We present the updated version of PI-QUAL (PI-QUAL v2) which applies to prostate MRI performed with or without intravenous contrast medium using a simplified 3-point scale focused on critical technical and qualitative image parameters. CLINICAL RELEVANCE STATEMENT: High image quality is crucial for prostate MRI, and the updated version of the PI-QUAL score (PI-QUAL v2) aims to address the limitations of version 1. It is now applicable to both multiparametric MRI and MRI without intravenous contrast medium. KEY POINTS: High-quality images are essential for prostate cancer diagnosis and management using MRI. PI-QUAL v2 simplifies image assessment and expands its applicability to prostate MRI without contrast medium. PI-QUAL v2 focuses on critical technical and qualitative image parameters and emphasises T2-WI and DWI.

Assessment of volume preservation performed before or after partial nephrectomy accurately predicts postoperative renal function: Results from a prospective multicenter study.

PURPOSE: Partial nephrectomy (PN) is standard for small renal masses, improving renal function by preserving renal parenchyma compared with radical nephrectomy. Recent work demonstrated that postoperative surgeon assessment of volume preservation (SAVP) and 3D imaging measurements agree and correlate with postoperative function. We hypothesize preoperative assessment of volume preservation (PAVP) with PN based on preoperative imaging will reliably indicate postoperative renal function. MATERIALS AND METHODS: Data were collected from 336 patients undergoing PN for suspected renal cancer by 40 surgeons at 12 centers in Europe and the United States within the Surface-Intermediate-Base International Consortium. Surgeons recorded PAVP and SAVP for individual patients; pre- and postoperative glomerular filtration rate (GFR) was estimated by Chronic Kidney Disease Epidemiology Collaboration equations. Correlations between PAVP, SAVP, and postoperative GFR were assessed with linear regression models. Bland-Altman analysis was used to assess agreement between PAVP and SAVP with a significant cutoff of 5%. RESULTS: Median PAVP was 90% (interquartile range [IQR] 85%-100%) and SAVP was 90% (IQR: 80%-94%). PAVP and SAVP were moderately correlated (R2 = 0.67, P < 0.0001) and deemed "interchangeable" by Bland-Altman analysis at a 5% acceptable rate of difference (95% CI: -5.4, -3.1). Median postoperative GFR was 77.3 (IQR: 56.2, 92.0). Both PAVP (R2 = 0.82, P < 0.0001) and SAVP (R2 = 0.83, P < 0.0001) were correlated with postoperative GFR. Multivariable models utilizing volume-adjusted GFR based on PAVP or SAVP significantly and similarly predicted postoperative GFR (R2 = 0.72 for each). CONCLUSION: Renal function is closely linked to the amount of parenchymal volume preservation, whether estimated prior to surgery (PAVP) or afterward (SAVP). PAVP provides reasonably accurate information for decision-making in patients considering PN.

European Association of Urology Section of Urolithiasis (EULIS) Consensus Statement on Simulation, Training, and Assessment in Urolithiasis.

BACKGROUND: Simulation-based training offers an acceptable adjunct to the traditional mentor-apprentice model in helping trainees to traverse the early stages of the learning curve for ureteroscopy and percutaneous renal surgery. In addition, nontechnical skills are increasingly important in preventing adverse events in the operating room, and simulation-based training can be used for training in such skills. Incorporation of simulation into formalised, standardised, and validated curricula offers an applicable method for training residents. OBJECTIVE: To develop a curriculum for urolithiasis procedures incorporating technical and nontechnical skills training for implementation across Europe. DESIGN, SETTING, AND PARTICIPANTS: An international panel of experts from EULIS, EUREP, ESU and ESUT was consulted in five stages. The study incorporated a mix of qualitative and quantitative data for collection and analysis. Responses were drawn out in (1) an opinion survey and (2) a curriculum development survey, which were discussed in (3) a focus group meeting. Group responses from this meeting were analysed for themes, which were discussed at (4) a focus group meeting, where consensus was reached among the group. Data analysis and integration at this stage were used to draft the curriculum. RESULTS AND LIMITATIONS: All group meetings were transcribed from the focus group discussion. Eight themes were generated, into which all data were categorised. These were: need for a training curriculum; curriculum objectives; curriculum structure; curriculum content; teaching platforms and tools; assessment and certification; validation and implementation; and global integration of the curriculum. A curriculum, including recommended simulators for use, was subsequently proposed. CONCLUSIONS: We propose a comprehensive curriculum for training in urolithiasis. Additional planning is required for full validation and implementation before it can be used to train residents. PATIENT SUMMARY: Stone disease accounts for a major proportion of surgical interventions worldwide. We describe a consensus guideline for effective training of stone surgeons.

Development Methodology of the Novel Endoscopic Stone Treatment Step 1 Training/Assessment Curriculum: An International Collaborative Work by European Association of Urology Sections.

Background: Simulation-based technical skill assessment is a core topic of debate, especially in high-risk environments. After the introduction of the E-BLUS (European Basic Laparoscopic Urological Skills) exam for basic laparoscopy, no more technical training/assessment urological protocols have been developed in Europe. Objective: We describe the methodology used in the development of the novel Endoscopic Stone Treatment step 1 (EST s1) assessment curriculum. Materials and Methods: The "full life cycle curriculum development" template was followed for curriculum development. A cognitive task analysis was run to define the most important steps and details of retrograde intrarenal surgery, in accordance with European Association of Urology (EAU) Urolithiasis guidelines. Training tasks were created between April 2015 and September 2015. Tasks and metrics were further analyzed by a consensus meeting with the European Section of Urolithiasis (EULIS) board in February 2016. A review, aimed to study available simulators and their accordance with task requirements, was subsequently run in London in March 2016. After initial feedback and further tests, content validity of this protocol was achieved during European Urology Residents Education Programme (EUREP) 2016. Results: The EST s1 curriculum development, took 23 months. Seventy-two participants tested the five preliminary tasks during EUREP 2015, with sessions of 45 minutes each. Likert-scale questionnaires were filled out to score the quality of training. The protocol was modified accordingly and 25 participants tested the four tasks during the hands-on training sessions of the European Section of Uro-Technology (ESUT) 2016 congress. One hundred thirty-four participants finally participated in the validation study in EUREP 2016. During the same event, 10 experts confirmed content validity by filling out a Likert-scale questionnaire. Conclusion: We described a reliable and replicable methodology that can be followed to develop training/assessment protocols for surgical procedures. The expert consensus meetings, strict adherence to guidelines, and updated literature search toward an Endourology curriculum allowed correct training and assessment protocol development. It is the first step toward standardized simulation training in Endourology with a potential for worldwide adoption.

The Evolving Role of Retrograde Intrarenal Surgery in the Treatment of Urolithiasis.

CONTEXT: Retrograde intrarenal surgery has gained substantial popularity worldwide thanks to continuous improvements in technology and techniques, and is now considered one of the first-line treatment options for active removal of renal stones. OBJECTIVE: To provide a comprehensive synthesis of the main evidences in literature on the current management of kidney stones by means of retrograde intrarenal surgery (RIRS). EVIDENCE ACQUISITION: A review of literature has been conducted using search string "retrograde intrarenal surgery OR flexible ureteroscop* OR ureterorenoscop*", without any language restriction; PubMed, Embase, and Scopus databases were searched in November 2016. Exclusion criteria involved manuscripts dealing with paediatric patients, and RIRS for proximal ureteric stones and for upper tract urothelial tumours. Fifty-seven papers were finally included in the analysis. EVIDENCE SYNTHESIS: Technological progress focuses on the miniaturisation of disposables and scopes, as well as on the increase of durability and improvement of the quality of image provided by these instruments. The technique has been in continuous development following the progress in technology. Currently, the main target of RIRS are renal stones 1-2cm in size, even though tertiary centres are pushing the boundaries to the treatment of larger stones. Nomograms predicting surgical outcomes and improving preoperative surgical planning have been developed. RIRS has been shown to be safe and effective in patients with specific conditions such as bleeding diathesis, anatomical malformation, or pregnancy. Cost effectiveness of the approach is still a matter of controversy when compared with other treatment modalities. CONCLUSIONS: RIRS is a well-established procedure under constant evolution with advances in technique and technology. It has gained worldwide popularity due to its minimal invasiveness and satisfactory outcomes. Future developments are needed to increase its cost effectiveness and extend its use to a wider range of indications. PATIENT SUMMARY: In this collaborative review, we have summarised the best evidence in literature with respect to current management of renal stones by means of retrograde intrarenal surgery (RIRS) with flexible ureteroscopy. RIRS has been shown to be a safe and effective treatment modality in a wide spectrum of clinical scenarios; technology and technique are continuously evolving to further push boundaries of its indications and efficacy.

Role of Penile Doppler US in the Preoperative Assessment of Penile Squamous Cell Carcinoma Patients: Results From a Large Prospective Multicenter European Study.

OBJECTIVE: To determine the role of penile Doppler ultrasound (PDU) compared with magnetic resonance imaging (MRI) in preoperative diagnostic evaluation of patients with penile squamous cell carcinoma. MATERIALS AND METHODS: A prospective analysis on patients presenting with clinical diagnosis of penile squamous cell carcinoma from 6 different European hospitals between 2012 and 2014 was carried out. Each patient who had planned an organ sparing approach underwent an MRI and PDU both with an artificial erection with prostaglandin E 1. Age, evidence of MRI or PDU corpora cavernosa infiltration, frozen section examination report, definitive pathological report, and surgical approach used per patient were recorded. Accuracy, precision, negative predictive value, sensitivity, and specificity were calculated. Outcomes were statistically evaluated. RESULTS: Two hundred patients were enrolled in the study. The mean age of the patients was 67.35 ± 15.45 (range 51-82). All of the patients were treated surgically. Of the 200 patients, 135 (67.5%) underwent a corpora sparing approach, whereas 65 had a partial penectomy because of the frozen section outcome. About corpora cavernosa infiltration, the definitive outcome confirmed the frozen section examination. PDU vs MRI accuracy was 96.5% vs 90.5%; precision was 92.6% vs 96%; sensitivity was 96.9% vs 73.8%, specificity was 96.2% vs 98.5%. Despite sensitivity (P <.05) no statistical evidence was found between ultrasound and MRI. CONCLUSION: PDU has a statistical similar outcome on detecting infiltration of corpora cavernosa and could be used as a less expensive tool to drive surgical strategy in patient with a diagnosis of penile squamous cell carcinoma.