Table 3.
Relations between MSA subtypes, SPECT categorizations and diagnosis.
| Variables | MSA Type | p Value | ||
|---|---|---|---|---|
| AMS-C | AMS-P | |||
| Diagnosis | Probable | 43 (82.7%) | 61 (70.1%) | p > 0.05 |
| Possible | 9 (17.3%) | 26 (29.9%) | ||
| SPECT qualitative assessment | Pathological | 27 (51.9%) | 82 (94.2%) | *** |
| Normal | 20 (38.5%) | 3 (3.4%) | ||
| Inconclusive | 5 (9.6%) | 2 (2.3%) | ||
| SPECT quantitative assessment | Global S/O | 1.452 (0.177) | 1.271 (0.128) | *** |
| Right S/O | 1.459 (0.185) | 1.280 (0.133) | *** | |
| Left S/O | 1.445 (0.172) | 1.262 (0.130) | *** | |
S/O: Striatum/Occipital; MSA: Multiple System Atrophy; MSA-P: Multiple System Atrophy Parkinsonian Type; MSA-C: Multiple System Atrophy Cerebellar Type; *** p < 0.001.