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The diagnostic valu...
The diagnostic value of dopamine transporter imaging and olfactory testing in patients with parkinsonian syndromes.
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- Georgiopoulos, Charalampos (författare)
- Linköpings universitet,Avdelningen för radiologiska vetenskaper,Medicinska fakulteten,Region Östergötland, Röntgenkliniken i Linköping
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- Davidsson, Anette (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Avdelningen för kardiovaskulär medicin,Hälsouniversitetet,Fysiologiska kliniken US
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- Engström, Maria (författare)
- Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Larsson, Elna-Marie (författare)
- Uppsala universitet,Radiologi,Uppsala University, Sweden
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- Zachrisson, Helene (författare)
- Linköpings universitet,Avdelningen för kardiovaskulär medicin,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Fysiologiska kliniken US
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- Dizdar (Dizdar Segrell), Nil, 1960- (författare)
- Linköpings universitet,Uppsala universitet,Neurologi,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Neurologiska kliniken i Linköping
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(creator_code:org_t)
- 2015-06-30
- 2015
- Engelska.
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Ingår i: Journal of Neurology. - : Springer Science and Business Media LLC. - 0340-5354 .- 1432-1459. ; 262:9, s. 2154-2163
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Abstract
Ämnesord
Stäng
- The aim of the study was to compare the efficacy of olfactory testing and presynaptic dopamine imaging in diagnosing Parkinson's disease (PD) and atypical parkinsonian syndromes (APS); to evaluate if the combination of these two diagnostic tools can improve their diagnostic value. A prospective investigation of 24 PD patients, 16 APS patients and 15 patients with non-parkinsonian syndromes was performed during an 18-month period. Single photon emission computed tomography with the presynaptic radioligand (123)I-FP-CIT (DaTSCAN(®)) and olfactory testing with the Brief 12-item Smell Identification Test (B-SIT) were performed in all patients. DaTSCAN was analysed semi-quantitatively, by calculating two different striatal uptake ratios, and visually according to a predefined ranking scale. B-SIT score was significantly lower for PD patients, but not significantly different between APS and non-parkinsonism. The visual assessment of DaTSCAN had higher sensitivity, specificity and diagnostic accuracy compared to olfactory testing. Most PD patients (75 %) had visually predominant dopamine depletion in putamen, while most APS patients (56 %) had visually severe dopamine depletion both in putamen and in caudate nucleus. The combination of DaTSCAN and B-SIT led to a higher rate of correctly classified patients. Olfactory testing can distinguish PD from non-parkinsonism, but not PD from APS or APS from non-parkinsonism. DaTSCAN is more efficient than olfactory testing and can be valuable in differentiating PD from APS. However, combining olfactory testing and DaTSCAN imaging has a higher predictive value than these two methods separately.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
Nyckelord
- Parkinson's disease; Atypical parkinsonism; Parkinsonian syndromes; Olfaction; I-123-FP-CIT SPECT
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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