An improved technique for the collection of [13N]ammonia to minimize radiation exposure
โ Scribed by Ram B. Sharma; Robert Gutkowski; Wiliam Porter; John Freitas; Howard Dworkin
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 211 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0969-8043
No coin nor oath required. For personal study only.
โฆ Synopsis
An improved method is reported for the collection of ['rN] (half-life 9.98 mitt) ammonia from the Siemens Radioisotope Delivery System (RDS-112) II-MeV negative ion cyclotron.
This new procedure permits reliable and facile routine collection of ['3N]ammonia and reduces radiation exposure to the operator 3-to 4-fold.
๐ SIMILAR VOLUMES
## Background: Oxygen 15 water and nitrogen 13 ammonia are widely used for the quantitative measurement of myocardial perfusion with positron emission tomography. however, blood flow obtained with n-13 ammonia by use of the conventional 2-compartment model frequently underestimates flow by 30% to 5
The exposure index is currently a method by which digital radiography manufacturers provide feedback to the technologist regarding the estimated exposure on the detector, as a surrogate for image signal-to-noise ratio and an indirect indication of digital image quality. Unfortunately, there are as m