ABSTRACT
A case is presented where I-124 produced by a clinical cyclotron was used with a positron emission tomography camera for clinical usage. This represents the first report of the utilization of this modality with this radionuclide. We feel the increased spatial resolution of PET should be of value in looking at thyroid disease.
Subject(s)
Carcinoma/diagnostic imaging , Iodine Radioisotopes , Thyroid Neoplasms/diagnostic imaging , Tomography, Emission-Computed , Female , Humans , Middle Aged , Particle AcceleratorsABSTRACT
Metrizamide is a non-ionised, water soluble, and completely absorbable contrast medium which can be used to demonstrate all sections of the spinal canal. The previous strict separation between water soluble, ionised media for the lumbal canal and oily media for the lumbosacral junction as well as the thoracic and cervical canal is no longer necessary. Experience in 110 patients shows that if a suitable concentration is chosen all segments of the spinal canal can be adequately investigated using the lumbal route. The application of contrast media via a lateral cervical entry or suboccipital puncture was not necessary in a single case. Side effects in the form of adhesive arachnoiditis were not observed.
Subject(s)
Metrizamide , Myelography/methods , Arachnoiditis/chemically induced , Humans , Metrizamide/adverse effects , SolubilityABSTRACT
The findings in CT and CAG were compared in 173 stroke patients to evaluate dependability in the localization of cerebral arterial occlusion and of infarction by CT, and to test the reliability of the angiographic and clinical diagnosis of a space-occupying lesion in patients diagnosed clinically as stroke cases.
Subject(s)
Cerebral Angiography , Cerebrovascular Disorders/diagnostic imaging , Tomography, X-Ray Computed , Brain/diagnostic imaging , Carotid Arteries/diagnostic imaging , HumansABSTRACT
Comparative studies of computed tomography and of regional cerebral blood flow (rCBF) by means of the intracarotid xenon-133-clearance method were performed in 25 stroke patients. The relationships between an infarction in CT and disturbances of rCBF, between a normal CT in stroke cases and focal changes of CBF, and between the luxury perfusion syndrome in the rCBF study and contrast enhancement of an infarct in CT are demonstrated and discussed.