Simultaneous administration of 111In-human immunoglobulin and 99mTc-HMPAO labelled leucocytes in inflammatory bowel disease.

Technetium-99m hexamethylpropylene amine oxime (HMPAO) labelled leucocytes and indium-111 polyclonal immunoglobulin (IgG) were simultaneously injected into a group of 27 patients routinely referred for the investigation of inflammatory bowel disease (IBD). Ten-minute anterior abdomen and tail on detector views were obtained at 30 min, 4 h and 24 h p.i.

Evaluation of obstructed kidneys by discriminant analysis of 99mTc-MAG3 renograms.

This study sought to develop a method of improving the differential diagnostic between healthy and obstructed kidneys using only parameters derived from the 99mTc-MAG3 renogram. The analysis included data from 46 healthy and 36 obstructed kidney units. The parameters calculated were: mean transit time (MTT), time at 20% of the initial height of the renal retention function (T20) and time to peak of the renogram (TP).

99Tcm-MAG3 renogram deconvolution in normal subjects and in normal functioning kidney grafts.

This study provides values of transit times obtained by 99Tcm- mercaptoacetyl triglycine (99Tcm-MAG3) renogram deconvolution for both normal subjects and kidney graft recipients. The analysis included 50 healthy kidney units from 25 volunteers and 28 normal functioning kidney grafts. The parameters calculated for the whole kidney (WK) and for the renal parenchyma (P) were: mean transit time (MTT) and times at 20% (T20) and 80% (T80) of renal retention function initial height.

Multiple atypical bone involvement in sarcoidosis.

We describe a patient with right paratracheal and left hilar lymph nodes detected by chance on chest radiography that followed a spontaneous remission. However, a few months later she complained of multiple scalp nodules. Skull roentgenogram and computerized tomogram scan showed multiple osteolytic lesions with increased uptake in bone and gallium scans.

Portacaval graft patency demonstrated by scintigraphic calculation of portal contribution to hepatic blood flow.

The case presented refers to a cirrhotic patient with portal hypertension in whom a portacaval graft bypass was surgically implanted. The calculation of the portal contribution to hepatic blood flow helped to demonstrate the patency of the graft.