الفهرس 
Introductionيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Bladder cancer (BC) is a common neoplastic tumor, which often occurs in the elderly. About 550,00 bladder cancer cases were diagnosed in 2018, worldwide.
MRI is utilized for the local staging of bladder carcinoma due to its high resolution and capacity to gauge the extent of the infiltration of the bladder wall. According to recent meta-analyses , extravesical extension and the distinction between NMIBC and MIBC may both be correctly predicted by MRI
The VI-RADS divides the probability of muscle invasion, as indicated by MRI findings, into five scores
VI-RADS scores 1” " ~ " ”5 are respectively defined as muscle invasion is highly unlikely, muscle invasion is unlikely to be present, the presence of muscle invasion is equivocal, muscle invasion is likely, and invasion of the muscle and beyond the bladder is very likely
Aim of study:
To investigate the diagnostic performance of MRI especially high resolution T2WI and DWI in assessment of local invasion of bladder cancer with histopathological diagnosis taken as a reference. Also, there is special concern to Vesical Imaging Reporting and Data System (VI-RADS) score.
The main results of the study:
• 25 individuals with UB mass lesion participated in this descriptive research. Gross hematuria was the case complaint in these patients. Their mean age (64.8 years) standard deviation (7.49 years) varied from 47 to 74 years. 4 women (16%) and 21 men (84%) were participants in the research.
• 68%of cases was smoker patients,32%of cases was non smoker.bladder cancer was common in smoker patients than non smoker
• VIRADS T2 in.relation with histopathology show that VIRADS score I 1 case non invasive, score II 4 cases is non invasive but 1case is invasive, score III 4cases non invasive and 1case is invasive, score IV 1 case is non invasive and 8 cases is invasive, score V 0 cases non invasive and 5cases is invasive
• In DWI, score 1 1case is non invasive, score II 7 cases is non invasive, 2cases is. Invasive, score III 2 cases non invasive, 0cases is invasive, score IV all 7cases is. Invasive, score V all 5cases is invasive
• The most typical type of bladder carcinoma in pathological examination is urothelial(transitional) cell carcinoma
• ADC value in non invasive bladder cancer is. Higher than in invasive bladder cancer
• According to T staging of pathology,non muscle invasive cases 10(40%),stage Tis 1 (4%),Ta 2(8%) and T1 7(28%),muscle invasive cases about 15(60%),stage T ur study revealed 14 case (56%)
• 14 (66%) cases was negative for lymph node metastasis, 11case(44%) positive for lymph node metastasis, correlating to pathological examination upon 15 case that revealed 5cases negative for lymph node metastasis and 10 cases positive for lymph node metastasis ,Size of lymph nodes averaging from 7 to 25mm.
• We used different b values of DWI and b value 1000 was the accurate one
• Combination between VIRADS T2 and DWI raise the sensitivity and accuracy than using T2 alone.