[Sequential renal scintiscanning with 99mTc calcium gluconate. Possibilities and limitations].

The methods used in the study of the kidney are discussed and sequential scintiscanning is suggested as a means of supplementing purely morphological data with morpho-functional data. An account of the modalities employed with a variety of radio-compounds and reasons are proffered for the choice of 99mTc calcium gluconate. Results obtained with this method are described.

[Comparison between automatic substraction devices and computer subtraction in radioisotope pancreatography].

Reference is made to several indicative cases in a personal series. Their comparative examination with a scanner and a gamma camera computer showed that: a) noticeably different findings were given by the two methods with regard to cystic, neoplastic, and inflammatory lesions of the pancreas, whereas; b) computerised subtraction was much more sensitive in lesions due to cysts and pancreatitis, even though there was no significant difference between the two methods in the case of neoplasia.

[Current role of pancreatic scintiscanning in the study of pancreatic symptomatology].

A brief reference is made to the part once assigned to scintiscanning as a method of approach to diseases of the pancreas. It is felt that the lack of confidence now displayed in this technique is based preconceptions. A new diagnostic approach is therefore proposed and briefly described.

[Scintigraphic diagnosis of pancreatic diseases: random analysis of 100 patients].

After a brief statement on the procedure of selection of the patients, the article describes how the cases were studied, since some difficulties arose through the lack of homogeneity of the subjects. The cases are then commented and an effort is made to evidence the outstanding data which can be deduced, and in particular a study is made of the percentage of overall unreliability of scintillographic examination, the "false positives" and the "false negatives", which are rather low. The Authors conclude with the consideration that scintiscanning of the pancreas now constitutes a valid method of investigation of pancreatic pathology.