Dosimetry of computerized tomography in the evaluation of hip dysplasia

Abstract

The usefulness of computerized tomography (CT) in the assessment of hip dysplasia has recently been given attention in the literature and concern regarding radiation dose has been raised. This study was undertaken to measure the radiation dose, both in and out of plaster, for plain films, arthrography, tomography, and CT. A method is suggested to reduce dosage by 80% without compromising diagnostic information. Our experience with 25 scans of patients aged 4 months to 39 years is presented.

Offset and anteversion reconstruction after cemented and uncemented total hip arthroplasty: an evaluation with the low-dose EOS system comparing two- and three-dimensional imaging

“…CT scan with 3D reconstruction is the other imaging study that can be used for measurement of the offset and hip geometry, but it exposes the patients to large radiation dose [29][30][31]. CT scan is supposed to be particularly accurate for the offset measures, but to our best knowledge, there is no study for repeatability and reproducibility of such measures.…”

Transinguinal Ultrasound versus Magnetic Resonance in Spica Cast after Closed Reduction of Unstable Hips in DDH

“…Once SC has been applied, the position of the head must be evaluated, to check if the hip is reduced or not [ 5 ]. Different techniques are available to verify the position of the femoral head in SC: X-ray [ 6 ], computer tomography (CT) [ 7 , 8 , 9 ], magnetic resonance (MR) [ 5 , 6 , 10 , 11 ] and ultrasound (US) [ 10 , 12 ]. According to Graf’s technique, ultrasound examination should be performed in a frontal standard plane, approaching the hip laterally and avoiding tilting errors of the probe [ 13 ] ( Figure 1 ); however, Graf’s method is not applicable in the presence of a SC.…”