الفهرس 
Ultrasound as a diagnostic imaging modalityOnly 14 pages are availabe for public view
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Abstract
Pelvic ultrasonography is the imaging modality most often used for the initial assessment of possible gynecologic abnormalities in patients of all ages. US offers the advantages of widespread availability, low cost, and lack of exposure to ionizing radiation.
The accuracy of ultrasonographic measurement of uterine size, when compared with direct measurement of histological specimens, has been investigated and found to have a very high accuracy with no significant difference in US dimension and that obtained with direct caliper measurement of histological specimens.
It has been shown that there is strong correlation between transabdominal ultrasound (TAUS) and MRI volume suggesting that TAUS is as accurate as MRI, and TAUS should be chosen as the standard evaluation of internal genitalia in girls.
Ultrasonography is the preferred modality for imaging the pediatric female reproductive system given its high spatial resolution, safety profile and relatively low cost. Interpretation of pelvic sonography is currently limited by a lack of validated reference range values for uterine dimensions, ovarian volume and endometrial stripe thickness per age year in children.
The normal anatomical appearance of the uterus is well known to gynecologists and can be recognized immediately on ultrasound examination or direct vision. Accordingly, any deviation from normal appearance is usually easily detected. However, very few normative data regarding uterine dimensions have been published.
Abnormal uterine proportions may have relevance for the detection of disease or physiological dysfunction. For example, uterine myometrial asymmetry is a well-recognized marker of the presence of adenomyosis. Furthermore, disproportion of the uterus may reflect myometrial dysfunction and thus be associated with subfertility. Although normative data for uterine length and volume have been described for girls prior to puberty there is a paucity of data in relation to uterine proportions for other age groups.
The assessment of uterine size and volume is helpful in the assessment of conditions including disorders of sex development precocious puberty, amenorrhea, infertility, menstrual disorders, pelvic masses, ambiguous genitalia and in the survivor of childhood or adult cancer who has been exposed to radiotherapy to a field that includes the pelvis.
Ovarian volume has been shown to have clinical utility in the assessment of women with subfertility, ovarian volume is currently one of the diagnostic criteria for the most common endocrinal disease in women (polycystic ovary syndrome; PCOS) and may be of value in screening for ovarian cancer.
The aim of study is to establish ultrasonographic standardization values of uterine and ovarian normative size in healthy females.
This retrospective observational study was conducted. The study included a total of 500 patients with different ages. The duration of the study ranged from 6-12 months.