Table 1

Clinical diagnosis on blinded video assessment for 38 cases for reviewer 1 and 2 versus FP-CIT result and the working clinical diagnosis

Case NoBlinded video diagnosisFP-CIT resultWorking clinical diagnosis
R1R2
1DTPDNormalDT
2ETDTNormalDT
3PDPDAbnormal (grade 3 JP; grade 2 JB)TDPD
4DTDTNormalDT
5DTPDAbnormal (grade 1)TDPD
6DTDTNormalDT
7Monosymptomatic rest tremorDTNormalET
8DTDTNormalDT
9PDDTAbnormal (grade 1)TDPD
10DTDTNormalDT
11DTDTNormalET
12PDPDAbnormal (grade 2 JP; grade 1 JB)TDPD
13ETPDNormalDT
14Monosymptomatic rest tremorPDAbnormal (grade 2 JP; grade 1 JB)TDPD
15ETDTNormalDT
16ETDTNormalDT
17PDDTNormalDT
18Atypical TremorPDAbnormal (grade 2)TDPD
19DTDTNormalDT
20DTDTNormalET
21PD/ Atypical TremorPDAbnormal (grade 2 JP; grade 3 JB)TDPD
22DTDTNormalDT
23PDPDNormalET
24DTPDAbnormal (grade 2)TDPD
25DTDTNormalDT
26DTPDNormalDT
27DTDTNormalDT
28PDPDAbnormal (grade 3 JP; grade 2 JB)TDPD
29ETDTNormalDT
30PDPDNormalDT
31PDPDAbnormal (grade 2 JP; grade 1 JB)TDPD
32PD/atypical tremorDTNormalET
33PDPDAbnormal (grade 2)TDPD
34Atypical tremorDTAbnormal (grade 1)TDPD
35ETDTAbnormal (grade 1 JP; grade 2 JB)TDPD
36PDPDAbnormal (grade 2)TDPD
37ETPDAbnormal (grade 2)TDPD
38ETPDNormalDT
  • DT, dystonic tremor; ET, essential tremor; Grades 0–3 for 123I-N-ω-fluoro-propyl- 2ß-carbomethoxy-3ß-(4-iodophenyl) nortropane ([123I] FP-CIT).22; JP and JB refer to nuclear physicians across the two sites; PD, Parkinson's disease; R1, reviewer 1; R2, reviewer 2; TDPD, tremor dominant Parkinson's disease.