RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
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Comparative Study
[Multislice CT (MSCT) in the detection and classification of pelvic and acetabular fractures].
To assess the usefulness of MSCT in the detection and classification of pelvic and acetabular fractures. ⋯ MSCT of the pelvis is needed for correct fracture detection and classification and has therapeutic consequences.
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Comparison between biventricular volumetric measurements and flow measurements in ascending aorta (Ao) and pulmonary outflow tract (Pu) for quantification of intracardial shunts, and evaluation of the combination of biventricular cine MRI with flow measurements for the assessment of RV and LV heart failure and valvular regurgitation (VR). ⋯ Flow measurements in Ao and Pu are more accurate than biventricular cine MRI for the assessment of Qp/Qs ratios. Flow measurements in Ao and Pu combined with biventricular cine MRI enables the quantification of hemodynamic significant shunts, higher grade VR and biventricular global systolic function with a single examination.
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Comparative Study
[Ultrasound-guided puncture of the subclavian vein to implant central venous ports].
To assess the safety and efficacy of ultrasound guided puncture of the subclavian vein instead of blind puncture or surgical procedure. The advantages compared with implantation of brachial ports are demonstrated. ⋯ Ultrasound guided puncture of the subclavian vein and port implantation by radiologists is a save procedure. A low risk approach to the subclavian vein is possible at any location. The long approach through the cubital vein with brachial port implantation is not necessary.
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Comparative Study
[Combination of low and high resolution T1-weighted sequences for improved evaluation of morphologic criteria in dynamic contrast enhanced MRI of the breast].
Presentation of a new protocol for simultaneous acquisition of both low and high resolution T 1 -weighted images of breast lesions for dynamic contrast-enhanced MR mammography. Demonstration of possible diagnostic improvement with representative measurements in patients with suspected breast cancer by adding morphologic parameters from high resolution sequences to the analysis of the signal-time curve. ⋯ The new protocol is a clever way to improve the measurement of morphologic features without relevant loss of dynamic information. It is superior to converting the entire investigation to high resolution sequences and does not add any costs by not extending or duplicating the investigation. How much the new protocol can improve the specificity or sensitivity of MR-mammography is currently investigated on a larger patient group.