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- Mattsson, S., et al.
(författare)
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Radiation Dose to Patients from from Radiopharmaceuticals: a Compendium of Current Information Related to Frequently Used Substances.
- 2015
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report provides a compendium of current information relating to radiation dose to patients, including biokinetic models, biokinetic data, dose coefficients for organ and tissue absorbed doses, and effective dose for major radiopharmaceuticals based on the radiation protection guidance given in Publication 60 (ICRP, 1991). These data were mainly compiled from Publications 53 , 80, and 106 (ICRP, 1987, 1998, 2008), and related amendments and corrections. This report also includes new information for 82 Rb-chloride, iodide (123 I, 124 I, 125 I, and 131 I) and 123 Ilabelled 2.-carbomethoxy 3.-(4-iodophenyl)-N-(3-fluoropropyl) nortropane (FPCIT). The coefficients tabulated in this publication will be superseded in due course by values calculated using new International Commission on Radiation Units and Measurements/International Commission on Radiological Protection adult and paediatric reference phantoms and Publication 103 methodology (ICRP, 2007). The data presented in this report are intended for diagnostic nuclear medicine and not for therapeutic applications.
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| 4. |
- Aziz, Q, et al.
(författare)
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Identification of human brain loci processing esophageal sensation using positron emission tomography
- 1997
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Ingår i: Gastroenterology. - 0016-5085 .- 1528-0012. ; 113:1, s. 50-59
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND & AIMS:Brain loci that process human esophageal sensation remain unidentified. The aim of this study was to identify the brain loci that process nonpainful and painful human esophageal sensation.METHODS:In 8 healthy subjects (7 men; age range, 24-47 years), distal esophageal stimulation was performed by repeatedly inflating a balloon at volumes that produced either no sensation, definite sensation, or pain. Two positron emission tomography scans were performed for each sensation using H2(15)O. Magnetic resonance brain scans were also performed in each subject, and the positron emission tomography data were coregistered with magnetic resonance scans. Analysis of covariance-corrected t images showing the contrasts definite sensation-baseline, pain-baseline, and pain-definite sensation were created.RESULTS:Nonpainful stimulation elicited bilateral activations along the central sulcus, insular cortex, and frontal/parietal operculum (P < 0.01). Painful stimulation produced more intense activations of the same areas and additional activation of the right anterior insular cortex and the anterior cingulate gyrus. Multiple areas of decreased activation were also observed; prominent among these was the right prefrontal cortex, which was inhibited during both nonpainful and painful stimulation.CONCLUSIONS:Esophageal sensation activates bilaterally the insula, primary somatosensory cortex, and operculum. The right anterior insular cortex and anterior cingulate gyrus process esophageal pain.
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| 6. |
- ANDERSSON, JLR, et al.
(författare)
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A METHOD FOR COREGISTRATION OF PET AND MR BRAIN IMAGES
- 1995
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Ingår i: JOURNAL OF NUCLEAR MEDICINE. - : SOC NUCLEAR MEDICINE INC. - 0161-5505. ; 36:7, s. 1307-1315
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Combining MRI morphological data with functional PET data offers significant advantages in research as well as in many clinical situations. Automatic methods are needed, however, to coregister the data from the two modalities. Methods: Simulated PET imag
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| 8. |
- Andersson, JLR, et al.
(författare)
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Regional cerebral blood flow and oxygen metabolism during migraine with and without aura
- 1997
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Ingår i: CEPHALALGIA. - : SCANDINAVIAN UNIVERSITY PRESS. - 0333-1024. ; 17:5, s. 570-579
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Eleven cases of migraine with and without aura were investigated with positron emission tomography (PET). Regional cerebral blood flow (rCBF), oxygen metabolism (rCMRO(2)) and oxygen extraction (rOER) were measured during baseline (n = 11), aura (n = 6),
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