Neurosurg 16: 378-418, 1969 20. EklSf B, Lassen NA, Nilsson L et al: Regional cerebral blood flow in the rat measured by the tissue sampling technique; a critical evaluation using four indicators C"-antipyrine, C"ethanol, H'-water and xenon". Acta Physiol Scand 91: 1-10, 1974 21. Eckman WW, Phair RD, Fenstermacher JD et al: Permeability limitation in estimation of local brain blood flow with (C...

Neurosurg 16: 378-418, 1969 20. EklSf B, Lassen NA, Nilsson L et al: Regional cerebral blood flow in the rat measured by the tissue sampling technique; a critical evaluation using four indicators C"-antipyrine, C"ethanol, H'-water and xenon". Acta Physiol Scand 91: 1-10, 1974 21. Eckman WW, Phair RD, Fenstermacher JD et al: Permeability limitation in estimation of local brain blood flow with (C...

The calculation of absorbed dose from internally incorporated radionuclides is based on the so-called specific absorbed fractions (SAFs) which represent the fraction of energy emitted in a given source region that is absorbed per unit mass in a specific target organ. Until recently, photon SAFs were calculated using MIRD-type mathematical phantoms. For electrons, the energy released was assumed...

UNLABELLED This study is a retrospective analysis of 124 differentiated thyroid cancer patients who underwent dosimetric evaluation using MIRD methodology over a period of 15 y. The objectives of the study were to demonstrate the clinical use of dosimetry-guided radioactive iodine ([RAI] (131)I) treatment and the safe and effective application of a 3-Gy bone marrow (BM) dose in patients with di...

Neurosurg 16: 378-418, 1969 20. EklSf B, Lassen NA, Nilsson L et al: Regional cerebral blood flow in the rat measured by the tissue sampling technique; a critical evaluation using four indicators C"-antipyrine, C"ethanol, H'-water and xenon". Acta Physiol Scand 91: 1-10, 1974 21. Eckman WW, Phair RD, Fenstermacher JD et al: Permeability limitation in estimation of local brain blood flow with (C...

The purpose of this study was to compare estimation of radiation absorbed doses to patients following bone scans with technetium-99m-labeled methylene diphosphonate (MDP) with the estimates given in MIRDose software. In this study, each patient was injected 25 mCi of (99m)Tc-MDP. Whole-body images from thirty patients were acquired by gamma camera at 10, 60, 90, 180 minutes after (99m)Tc-MDP in...

Radioiodine/Retention/Japanese A dose of 2.74 kBq of carrier-free 131I (Nal) was given orally to 2 male adults (A and B) in their routine works under a limitation of iodine intake for A and a fairly free access to iodine intake for B for 2 weeks predose. In both the thyroid and the whole-body, the reten tions were expressed with a 2 term-exponential function. The metabolic data for subjects A a...

Institute of Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Portugal In order to ensure the safe usage of new radiopharmaceuticals in Positron Emission Tomography (PET), it is necessary to quantify the doses delivered to the organs and tissues within the patients’ bodies. A framework that allows estimating the dose delivered by PET has been established by the MIRD Committee ...

The number of Positron Emission Tomography (PET) centers has been growing rapidly. Many of the new facilities have been retrofitted into existing imaging centers and hospitals. Space in the facilities is often cramped, resulting in the hot lab, patient quiet rooms, and the scanners frequently being placed in close proximity to uncontrolled areas where non-occupational dose limits apply. Of part...