La Radiologia medica
-
La Radiologia medica · Mar 1996
[Color Doppler echography in the study of obstruction-related lung collapse].
The typical US pattern of obstructive atelectasis consists in a triangular hypoechoic area with anechoic bands inside related to fluid-filled bronchial structures--the US fluid bronchogram sign. According to some authors, this US sign within a chest mass indicates pulmonary parenchyma disease. Furthermore, it suggests the diagnosis of lung collapse. ⋯ Indeed, the arterial spectrum with high distal resistance is consistent with the effects of hypoxia on intra-atelectatic blood vessels. Further research is necessary to assess the role of color-Doppler US in the hemodynamic study of intra-atelectatic vessels. However, our preliminary results open new perspectives for the acquisition of physiopathologic data on abnormal blood flow in obstructive atelectasis.
-
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.
-
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.