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How to interpret di...
How to interpret differing cerebral blood flow patterns estimated with 99tcm-hmpao and 99tcm-ecd spet in a healthy population
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- Siennicki-Lantz, Arkadiusz (författare)
- Lund University,Lunds universitet,Geriatrik,Forskargrupper vid Lunds universitet,Geriatric Medicine,Lund University Research Groups,Geriatrics,Skåne University Hospital
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- Elmståhl, Sölve (författare)
- Lund University,Lunds universitet,Geriatrik,Forskargrupper vid Lunds universitet,Geriatric Medicine,Lund University Research Groups,Geriatrics,Skåne University Hospital
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- Lilja, B. (författare)
- Skåne University Hospital
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(creator_code:org_t)
- Ovid Technologies (Wolters Kluwer Health), 1999
- 1999
- Engelska.
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Ingår i: Nuclear Medicine Communications. - : Ovid Technologies (Wolters Kluwer Health). - 0143-3636. ; 20:3, s. 219-226
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Abstract
Ämnesord
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- Two radiopharmaceuticals, 99Tcm-hexamethyl propylene amine oxime (99Tcm-HMPAO) and 99Tcm-ethyl cysteinate dimer (99Tcm-ECD), are currently used to determine cerebral blood flow. 99Tcm-ECD is, by virtue of its greater stability, superceding 99Tcm-HMPAO for routine examinations. Since the clinical assessment of 99Tcm-ECD images is usually based on experience with 99Tcm-HMPAO, we used both radiopharmaceuticals to compare regional cerebral blood flow in the same individuals. Eleven healthy subjects aged 67.1 ± 6.3 years (mean ± S.D.) underwent 99Tcm-ECD followed by 99Tcm-HMPAO single photon emission tomography. Cerebral blood flow was quantified in cortical and central regions of interest (basal ganglia, ventricles, white matter) in relation to cerebellar uptake. The intra-subject comparison of cerebral blood flow in the cortical areas revealed higher levels of perfusion in the posterior parietal, parieto-occipital and temporo-occipital areas using 99Tcm-ECD. In contrast to the cortical areas, cerebral blood flow in the central areas was greater using 99Tcm-HMPAO, especially in the centrum semiovale, basal ganglia, frontal white matter and frontal horns. This difference in cerebral blood flow when imaging healthy individuals with 99Tcm-ECD and 99Tcm-HMPAO should be taken into account in clinical practice when changing from one radiopharmaceutical to the other.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Geriatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Geriatrics (hsv//eng)
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- art (ämneskategori)
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