La Radiologia medica
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La Radiologia medica · Mar 1996
Comparative Study[The integrated diagnosis of hepatic focal nodular hyperplasia: echography, color Doppler, computed tomography and magnetic resonance compared].
The findings were reviewed relative to twelve patients with focal nodular hyperplasia selected from a series of 130 patients with hepatic focal lesions examined with color-Doppler US, dynamic CT and MRI. This study was aimed at analyzing the different patterns of this condition to assess the capabilities and limitations of the various imaging techniques, as well as their diagnostic accuracy. Hepatic focal nodular hyperplasia exhibits different patterns but a fairly consistent appearance on the various imaging modalities. ⋯ Dynamic CT sensitivity was 80% while MRI sensitivity was 40% and this technique failed to add any useful information in questionable cases. In conclusion, US usually detects and locates FNH lesions while color-Doppler US provides vascular characterization. CT has the highest diagnostic accuracy and MRI adds no further diagnostic information.
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La Radiologia medica · Mar 1996
[An analysis of insurance claims of civil responsibility in radiology. The first Italian data].
The purpose of this study is to provide information to Italian radiologists regarding claims and patient injuries in medical malpractice claims. The assurance claims of Italian radiologists over a two-year period (1994-95) were anonymously analyzed, based on pertinent data provided by the Insurance Company of the Italian Society of Medical Radiology. The incidence risk-rate of claims was 9.1 per thousand person/year. ⋯ Claims were more frequent in public health services, and mostly related to emergency examinations and interventional procedures. Misdiagnoses almost exclusively involved public health radiologists. Private health care, on the other hand, had a higher rate of fatal injuries, mostly related to technical complications.
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La Radiologia medica · Jan 1996
[An in-vivo dosimetric study of the scattered radiation during the treatment of breast carcinoma].
In the last decade, radiation therapy has been increasingly used to treat breast cancer conservatively and some authors showed their concern about the radiogenic effects of irradiation outside the treated area. Our aim was to measure the scattered dose to the contralateral breast, thyroid and gonads during radiation therapy after conservative breast surgery. Thermoluminescent dosimeters, LiF Mn Ti (3 x 3 x 0.9 mm3), were used to measure scattered radiations outside the treated area. ⋯ In the 60Co group no correlation was statistically significant, except for the correlation between the beam area and the minimum dose to the gonads (p < 0.001). Our experience confirms the scattered dose to depend on head treatment, beam area, gantry angle and wedge angle. Finally, the literature on this subject is reviewed.