Bone scintigraphy of the aged patient. 1. /sup 99m/Tc-polyphosphate bone scintigraphy (in Japanese)
Application and evaluation of a new bone-seeking radiopharmaceuticai, / sup 99m/Tc-polyphosphate are reported. Analysis of the image by digital color display data analyzer (Phosdac) was performed. The subjects of the study were cases at Tokyo Metropolitan Geriatric Hospital ranging from 63 to 85 years old with several kinds of bone diseases. Polyphosphate kits (Diagnostic Isotopes, Inc.) were used to prepare /sup 99m/Tc, and a Rho/gamma HP gamma-camera was used for scintigraphy. The images obtained were analyzed by Phosdac to obtain clear image of the bone system. In the final preparation, presence of approximately 30% of free /sup 99m/Tc was noticed by paper chromatography. /sup 99m/Tc- polyphosphate was cleared from the blood with a half time of about 60 min. Urinary excretion proved to be 40 to 60% within 24 hrs. The bone system was visualized rather clearly with high accumulation of the label in the diseased region in spite of the fact that geriatric cases had marked general osteoporotic tendencies. In some cases, ribs were clearly visualized, and different information from that of x-ray was obtained by scanning images. Data processing by Phosdac increased diagnostic accuracy by enhancing the difference of the density of the image as well as eliminating the background caused by free /sup 99m/TcO/sub 4/. In conclusion, /sup 99m/Tc-polyphosphate was proved to be useful for bone scanning in geriatric cases. A digital color display data analyzer was successfully applied for the processing of the original data. (auth)
- Research Organization:
- Tokyo Metropolitan Geriatric Medical Center
- NSA Number:
- NSA-29-010555
- OSTI ID:
- 4408018
- Journal Information:
- Kaku Igaku, v. 9, no. 6, pp. 561-568, Other Information: Orig. Receipt Date: 30-JUN-74; Bib. Info. Source: JA (JA)
- Country of Publication:
- Japan
- Language:
- Japanese
Similar Records
Computed tomography and bone scintigraphy is polyostotic fibrous dysplasia. Report of a case. [Tc 99m]
Incidental renal imaging during bone scanning with /sup 99m/Tc--polyphosphate: a diagnostic bonus