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Abstract Summary and conclusion This study was performed to evaluate the role of T2 maps and ADC maps in diagnosis of lumbar disc degeneration. This study evaluated 30 patients: 15 males and 15 females. Their ages ranged between 35 and 62 years (mean age of 47.50 ± 7.88) presenting with low-back pain and referred to Radio-diagnosis and medical imaging department at Tanta university hospital for MRI assessment during the period between May 2017 and May 2018. All patients were subjected to : -proper history taking. -Initial spine protocols followed by complementary T2 mapping and diffusion weighted imaging. - Pfirmann grading system using sagittal T2WI. This study showed the following results: 1- percentage of discs classified into pfirmann grade I (11.3 %) ,Grade II (24%) ,Grade III (28.7 %), grade IV (28.7 %), grade V (7.3 %). 2- T2 values were found to decrease with the extent of disc degeneration except in grade V it found to be increased again. 3- there is negative correlation between T2 values and semi quantitative grading(Pfirmann Grading) of disc degeneration and T2 values were significantly different when compairing Grade I to V . |