{
  "ptid_time": "141_S_0767_2012-08-25",
  "img_path": "/data/qiuhui/data/adni/images/141_S_0767/2012-08-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,326 mm³, 9.8% below the reference mean. With a Z-score of -0.22 (41.1th percentile), this represents normal volume ; hippocampal volume measures 6,139 mm³, 13.7% below the reference mean. With a Z-score of -1.26 (10.4th percentile), this represents mild atrophy; whole brain volume measures 886,385 mm³, 9.1% below the reference mean. With a Z-score of -1.14 (12.7th percentile), this represents mild atrophy; entorhinal cortex volume measures 4,295 mm³, 16.9% above the reference mean. With a Z-score of 1.04 (85.1th percentile), this represents mild enlargement; fusiform gyrus volume measures 16,591 mm³, 2.5% below the reference mean. With a Z-score of -0.23 (41.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,989 mm³, 11.4% below the reference mean. With a Z-score of -0.99 (16.2th percentile), this represents normal volume . ",
  "text_data": "Age is 79.0 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 7.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal and whole brain volumes show mild atrophy (Z-scores -1.26 and -1.14, respectively), which may indicate early neurodegenerative changes. However, cognitive scores (MMSE 30, MoCA 28) are intact, and APOE4 is negative, suggesting no significant clinical impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (structural changes are present but not yet clinically significant)",
  "timestamp": "2025-07-26T16:48:51.019079"
}