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Magnetic resonance imaging characteristics of adenomyosis
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Abstract
SUMMARY
Background: Adenomyosis is a popularly reproductive age disease in women which are benign, chronic, cyclical and complex. Adenomyosis is defined as the existence of endometrium’s stromal and adeno tissue in the uterus muscle layer. In 15 to 44 women ages,
adenomyosis prevalance is about 10%. Magnetic resonance imaging is a non-invasive and highly accurate for diagnosing adenomyosis, distinguishing them from other gynecological diseases.
Objective: Researching the MRI characteristics of adenomyosis.
Methods: The patients had previously ultrasound results reported with fibroids or adenomyosis. All will be indicated to magnetic
resonance imaging with contrast agent at the hospital from IPAK. We conducted describing and analyzing all magnetic resonance imaging
results which determined adenomyosis from 06/2015 to 05/2016.
Results: There are 240 cases of pelvic MRI including adenomyosis 58 cases (24%). Ages 24-58, average 36. Less than 40 accounted for
88%, abdominal pain during menstruation and menstrual days around 92%. The painful score for adenomyosis: Level 0 (0%), Level 1 (30%),
grade 2 (58%), grade 3 (12%). Adenomyosis are focal accounts for 78% and diffuse infiltration account for 22%. In the focal adenomyosis
type, smooth muscle hypertrophy comes up 90%, no smooth muscle hypertrophy in infiltration type. Focal adenomyosis usually located in posterior wall of uterus (88%) (p <0.05). Features on MRI imaging: lower
intenisty signal on T1W was 98%, mixed intensity signal on T2W was 98%, mixed intenisty signal on both T1W and T2W was 2% correlating with hemorrhage. Mixed intensity signal on T2W STIR got proportion 98%. Adenomyosis significant restrictions on DWI with bvalue 1000 accounted for 66% b and unrestricted diffusion 34% (p <0.05). Perfusion
of adenomyosis: Strong 55%, intermediate 25%, weak 20% (p <0.05). Another pelvis diseases correlating with adenomyosis: fibroids (22%), simple ovarian cysts (25%), endometriosis ovarian (8%). Common
complication is adhesive to rectum (4%) and ovarian (2%). Anomyosis is eligible to MRI HIFU 21 cases (36%).
Conclusion: MRI is an accurate method for assessing adenomyosis as well as disease of pelvis and the results are valuable to refer appropriate treatment for this disease.
Article Details
Keywords
Adenomyosis, magnetic resonance imaging
References
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