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Title: Multi parametric magnetic resonance imaging in the early detection and risk stratification of prostate cancer : the PROMIS trial
Author: El-Shater Bosaily, Ahmed
ISNI:       0000 0004 7660 2788
Awarding Body: UCL (University College London)
Current Institution: University College London (University of London)
Date of Award: 2018
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Although prostate cancer is the most common cancer in men, it remains a difficult and controversial disease in terms of its diagnostic, risk stratification and treatment pathway. This is mainly due to the shortcomings of the standard diagnostic test, trans rectal ultrasound guided biopsy (TRUSBx), that is triggered following an elevated serum prostate specific antigen (PSA) test and the lack of agreement on disease thresholds that correlate to patient risk, if left untreated (and thus undetected). These factors often complicate the selection of the appropriate management that best fits the individual patient. In this doctoral thesis I propose, examine and validate a different approach that aims to shift the current diagnostic paradigm to that of incorporating an imaging test, multi-parametric magnetic resonance imaging (MP-MRI), prior to TRUS biopsy. First, I will discuss the nature of prostate cancer and highlight the shortcomings of the current diagnostic pathway and their implications. Second, I will analyze the shortcomings in early MP-MRI research that might have hindered its acceptance and adoption into the pathway and review the advances in research that occurred since I started my research. Third, I will discuss the rationale and methodological design considerations behind the PROstate Mri Imaging Study (PROMIS). PROMIS was a multicentre diagnostic paired validating confirmatory cohort study conducted to provide level 1b evidence on diagnostic accuracy of MP-MRI. It was designed to avoid the pitfalls identified in the current literature. I will discuss and analyze the design, conduct and results of the trial and its implications. Finally, I will discuss the wider implications of my work on the clinical practice of prostate cancer management and the future research opportunities made possible by the PROMIS data and its findings.
Supervisor: Ahmed, H. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available