Can three-dimensional pelvimetry using low-dose stereoradiography replace low-dose CT pelvimetry?

Tailored low dose three-dimensional CT of paranasal sinuses.

A technique for three-dimensional (3D) computed tomography (CT) of the paranasal sinuses was evaluated. The influence of milliamperage and reconstruction algorithms on image quality was studied in a phantom. Eleven patients with bony abnormalities of the paranasal sinuses underwent CT to assess the clinical impact of 3D CT protocol. Contiguous 1.5-mm sections obtained at 120 kVp/175 mA/1.9 sec ...

Can low-dose abdominal CT replace abdominal plain film in evaluation of acute abdominal pain?

BACKGROUND Non-contrast computed tomography (NCT) has become an important diagnostic tool in acute abdominal pain, but the drawback is the increased radiation dose compared to abdominal plain film (APF). PURPOSE To evaluate whether NCT, including low-dose computed tomography (LDCT, using 50 mAs), provides more diagnostic information than APF in patients presenting with acute non-traumatic abd...

Pelvimetry in obstetrics.

Dose requirements in stereoradiography

Stereoscopic viewing of radiographic images is advantageous in reducing ambiguity due to background anatomic noise. This advantage is usually considered to be balanced by doubling the dose required for acquisition of a stereo image pair. In the case of a quantum-noise limited detector, detection theory suggests a possible decrease of the dose by half. We tested this assumption by a series of co...

بررسی تاثیر آسپرین low-dose (75mg/day) در پیشگیری از پراکلامپسی

خطرات پره اکلامپسی و متعاقب آن اکلامپسی به خوبی مشخص می باشد. آسپرین low-dose با کاهش انتخابی ترومبوکسان a2 سبب غلبه پروستاسیکلین شده و به این طریق از پره اکلامپسی و عوارض آن جلوگیری می نماید. در این مطالعه 150 خانم حامله در معرض پره اکلامپسی به طور رندوم به دو گروه دریافت کننده آسپرین (60 نفر) و دریافت کننده آسپرین (90 نفر) تقسیم شدند. پراکلامپسی فقط در 2 نفر از گروه آسپرینی دیده شد(3/3