{
  "ptid_time": "130_S_4990_2013-04-26",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4990/2013-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,064 mm³, 89.1% above the reference mean. With a Z-score of 2.04 (97.9th percentile), this represents significant enlargement; hippocampal volume measures 5,617 mm³, 21.0% below the reference mean. With a Z-score of -1.93 (2.7th percentile), this represents moderate atrophy; whole brain volume measures 889,811 mm³, 8.7% below the reference mean. With a Z-score of -1.10 (13.7th percentile), this represents mild atrophy; entorhinal cortex volume measures 2,651 mm³, 27.8% below the reference mean. With a Z-score of -1.71 (4.4th percentile), this represents moderate atrophy; fusiform gyrus volume measures 14,992 mm³, 11.9% below the reference mean. With a Z-score of -1.08 (14.0th percentile), this represents mild atrophy; middle temporal gyrus volume measures 14,810 mm³, 22.7% below the reference mean. With a Z-score of -1.97 (2.4th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 75.6 years. Gender is Female. Education: 14 years. MMSE: 24.0. MoCA: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows significant ventricular enlargement (Z-score 2.04) and moderate to severe atrophy in key Alzheimer's-related regions (hippocampus, entorhinal cortex, middle temporal gyrus). The cognitive scores (MMSE 24, MoCA 12) are consistent with significant cognitive impairment, and the presence of an APOE4 allele increases Alzheimer's risk.  \nDiagnosis: Dementia (likely Alzheimer's disease)  \nConfidence",
  "timestamp": "2025-07-26T14:57:03.125321"
}