الفهرس 
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Abstract
On the basis of this study we conclude that MRI has great role in detection of endometriosis and complete evaluation of different pelvic compartments simultaneously especially in the ultrasonograpically-indeterminate suspected lesions as those of the uterus and bladder.
It could diagnose 21 out of 29 cases through its most diagnostic finding as follow; high signal intensity on T1WI while low signal intensity in T2WI (T2 shading) which occurs due to repeated hemorrhages with consequent differential settling of blood depending on its stage of evolution.
Our study revealed that both T1 high signal intensity and T2 low signal intensity are significant in the diagnosis of endometriosis, also ROC curve showed that T1 hyper signal images have sensitivity 85.71 %, specificity 62.5 % and accuracy of 79.3% in diagnosis of endometriosis, while T2 hypo intense signal images have 76.19% sensitivity, specificity 75 % and accuracy of 75.9 %.
However, in endometriomas this classical finding is usually seen whereas deep pelvic endometriosis may have variable signal intensity and are usually hypointense on both T1 and T2 due to severe desmoplastic reaction with fibromuscular proliferation.
Addition of DWI to routine MRI showed insignificant difference between females who diagnosed as endometriosis and not by MRI and this may be due to small sample size in this study. We recommend that large sample size should be evaluated.