{
  "ptid_time": "099_S_6632_2021-01-20",
  "img_path": "/data/qiuhui/data/adni/images/099_S_6632/2021-01-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,982 mm³, 10.4% above the reference mean. With a Z-score of 0.24 (59.4th percentile), this represents normal volume ; hippocampal volume measures 6,024 mm³, 15.3% below the reference mean. With a Z-score of -1.41 (8.0th percentile), this represents mild atrophy; whole brain volume measures 890,147 mm³, 8.7% below the reference mean. With a Z-score of -1.09 (13.8th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,322 mm³, 9.6% below the reference mean. With a Z-score of -0.59 (27.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,638 mm³, 2.2% below the reference mean. With a Z-score of -0.20 (42.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 13,294 mm³, 30.6% below the reference mean. With a Z-score of -2.66 (0.4th percentile), this represents significant atrophy. ",
  "text_data": "Age is 76.5 years. Gender is Female. Education: 14 years. MMSE: 10.0. MoCA: 2.0. Logical Memory: 22.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.16 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows significant atrophy in the middle temporal gyrus and mild atrophy in the hippocampus and whole brain, which are key regions affected in Alzheimer's disease. The very low MMSE (10) and MoCA (2) scores strongly indicate severe cognitive impairment, consistent with dementia.  \n\nDiagnosis: Dementia  \nConfidence: High",
  "timestamp": "2025-07-26T11:13:16.802908"
}