TY - JOUR
T1 - Striatal Dopamine Transporter Binding Does Not Correlate with Clinical Severity in Dementia with Lewy Bodies
AU - Ziebell, Morten
AU - Andersen, Birgitte B
AU - Pinborg, Lars H
AU - Knudsen, Gitte M
AU - Stokholm, Jette
AU - Thomsen, Gerda
AU - Karlsborg, Merete
AU - Høgh, Peter
AU - Mørk, Mette Louise
AU - Hasselbalch, Steen G
PY - 2013/7/1
Y1 - 2013/7/1
N2 - Patients who have dementia with Lewy bodies (DLB) show both clinical and histopathologic overlap with Alzheimer disease patients and Parkinson disease patients. In this study, we correlated the core features of DLB (dementia, parkinsonism, hallucinations, and fluctuations) with striatal dopamine transporter (DAT) availability as assessed with SPECT and 123I-N-(3- iodoprop-2E-enyl)-2-β-carbomethoxy- 3b-(4-methylphenyl) nortropane (123I-PE2I) in patients with newly diagnosed DLB. Methods: Two hundred eighty-eight patients were consecutively included in the study as they were referred for diagnostic SPECT scanning of DAT with 123I-PE2I. Of those patients, 51 had, on the basis of clinical guideline criteria, a probable- DLB diagnosis at follow-up 16 ± 11.6 mo later. Before or on the day of the SPECT scan, DLB patients had a routine neurologic examination including Hoehn and Yahr grading and were cognitively evaluated with the Mini Mental State Examination. Results: There was no correlation between Mini Mental State Examination, Hoehn and Yahr score, fluctuations or hallucinations, and striatal DAT availability as measured with 123I-PE2I and SPECT. Conclusion: In patients with newly diagnosed DLB, symptoms are not associated with a reduction in striatal DAT despite its firm involvement in DLB pathology.
AB - Patients who have dementia with Lewy bodies (DLB) show both clinical and histopathologic overlap with Alzheimer disease patients and Parkinson disease patients. In this study, we correlated the core features of DLB (dementia, parkinsonism, hallucinations, and fluctuations) with striatal dopamine transporter (DAT) availability as assessed with SPECT and 123I-N-(3- iodoprop-2E-enyl)-2-β-carbomethoxy- 3b-(4-methylphenyl) nortropane (123I-PE2I) in patients with newly diagnosed DLB. Methods: Two hundred eighty-eight patients were consecutively included in the study as they were referred for diagnostic SPECT scanning of DAT with 123I-PE2I. Of those patients, 51 had, on the basis of clinical guideline criteria, a probable- DLB diagnosis at follow-up 16 ± 11.6 mo later. Before or on the day of the SPECT scan, DLB patients had a routine neurologic examination including Hoehn and Yahr grading and were cognitively evaluated with the Mini Mental State Examination. Results: There was no correlation between Mini Mental State Examination, Hoehn and Yahr score, fluctuations or hallucinations, and striatal DAT availability as measured with 123I-PE2I and SPECT. Conclusion: In patients with newly diagnosed DLB, symptoms are not associated with a reduction in striatal DAT despite its firm involvement in DLB pathology.
U2 - 10.2967/jnumed.112.114025
DO - 10.2967/jnumed.112.114025
M3 - Journal article
C2 - 23637201
SN - 0161-5505
JO - The Journal of Nuclear Medicine
JF - The Journal of Nuclear Medicine
ER -