Abstract
Multiparametric magnetic resonance imaging with VI-RADS is a newly discussed method of diagnosing bladder cancer. There are more studies suggesting implementation of mpMRI with VI-RADS to the modern scheme of treating bladder cancer. It requires much more observation and trials to give a final recommendations. The aim of the summary is to present VI-RADS scale and possibilities that appear with the method. Many studies, that were made by departments of urology or radiology, showed promising results.
 Background: estimation of bladder cancer depends on proper tumor staging, grading and assessment of its biological potential. It is provided by a multimodal approach using clinical, histopathological and radiological methods. Development of MRI provides the best imaging technique for locoregional staging in several other tumors. Lately it was adjusted in BCa preoperative evaluation leading to significant improvement in differentiating patients with NMIBCs and MIBCs.
 Objective: this article aims to approximate the fundamentals of MRI in BCa and to provide an overview of the available data on the role of VI-RADS score in the diagnostic pathway of bladder cancer.
Highlights
Bladder cancer (BC) is one of the most common tumors in Polish population
An important issue is the question of the agreement for reviewers in categorizing according to the Vesical Imaging-Reporting and Data System (VI-RADS) five-point scoring system among multiple readers with different levels of expertise
In studies evaluating the interobserver agreement of VI-RADS observed moderate to substantial (6), good to excellent agreement of VI-RADS to discriminate
Summary
Bladder cancer (BC) is one of the most common tumors in Polish population. It is on the 4th place and the 5th place in terms of incidence and mortality among all other tumours in Poland (1). About 50% percent of bladder cancers are caused by cigarette smoking, but it is not the only cause. Polycyclic aromatic hydrocarbons and some other chemicals in heavy industry is the second most important risk factor. Radiotherapy of pelvic organs (prostate, rectum) may increase the risk of bladder cancer. In some parts of the world Schistosoma Haematobium may be a significant factor, which brings squamous cell bladder cancers on (2)
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