{
  "ptid_time": "036_S_6878_2020-07-23",
  "img_path": "/data/qiuhui/data/adni/images/036_S_6878/2020-07-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,308 mm³, 20.2% above the reference mean. With a Z-score of 0.48 (68.6th percentile), this represents normal volume ; hippocampal volume measures 5,916 mm³, 21.7% below the reference mean. With a Z-score of -2.12 (1.7th percentile), this represents significant atrophy; whole brain volume measures 988,513 mm³, 8.4% below the reference mean. With a Z-score of -1.09 (13.7th percentile), this represents mild atrophy; entorhinal cortex volume measures 2,410 mm³, 41.2% below the reference mean. With a Z-score of -2.80 (0.3th percentile), this represents significant atrophy; fusiform gyrus volume measures 19,840 mm³, 5.3% above the reference mean. With a Z-score of 0.45 (67.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,220 mm³, 9.9% below the reference mean. With a Z-score of -0.89 (18.6th percentile), this represents normal volume . ",
  "text_data": "Age is 75.2 years. Gender is Male. Education: 12 years. Handedness: Right. Race: White. MMSE: 24.0. MoCA: 19.0. Logical Memory: 2.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.38 SUVR (significant elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The data shows significant atrophy in the hippocampus and entorhinal cortex, both critical regions for memory and early Alzheimer's pathology. The MMSE (24) and MoCA (19) scores indicate cognitive impairment, and the elevated AV45 (amyloid PET) suggests amyloid pathology. The absence of APOE4 does not rule out Alzheimer's, as sporadic cases are common.  \nDiagnosis: Dementia (likely Alzheimer's disease)  \nConfidence: High",
  "timestamp": "2025-07-26T06:23:09.071732"
}