{
  "ptid_time": "002_S_6066_2017-08-16",
  "img_path": "/data/qiuhui/data/adni/images/002_S_6066/2017-08-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,538 mm³, 43.9% below the reference mean. With a Z-score of -1.10 (13.6th percentile), this represents mild atrophy; hippocampal volume measures 7,467 mm³, 2.8% below the reference mean. With a Z-score of -0.32 (37.5th percentile), this represents normal volume ; whole brain volume measures 1,065,800 mm³, 3.6% above the reference mean. With a Z-score of 0.44 (67.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,494 mm³, 10.2% below the reference mean. With a Z-score of -0.79 (21.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,959 mm³, 1.4% below the reference mean. With a Z-score of -0.16 (43.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,371 mm³, 0.7% below the reference mean. With a Z-score of -0.06 (47.4th percentile), this represents normal volume . ",
  "text_data": "Age is 68.4 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 30.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.23 SUVR (mild elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild ventricular atrophy but otherwise normal volumes in key regions like the hippocampus, entorhinal cortex, and temporal structures. Cognitive scores (MMSE, MoCA) are intact, and there is no APOE4 risk allele, though AV45 (amyloid PET) shows mild elevation.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild amyloid elevation but no structural or cognitive deficits)",
  "timestamp": "2025-07-25T20:36:44.793453"
}