{
  "ptid_time": "067_S_0029_2006-05-02",
  "img_path": "/data/qiuhui/data/adni/images/067_S_0029/2006-05-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,885 mm³, 69.5% above the reference mean. With a Z-score of 1.65 (95.1th percentile), this represents moderate enlargement; hippocampal volume measures 7,149 mm³, 10.9% below the reference mean. With a Z-score of -1.09 (13.7th percentile), this represents mild atrophy; whole brain volume measures 1,176,270 mm³, 3.7% above the reference mean. With a Z-score of 0.52 (69.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,430 mm³, 19.5% below the reference mean. With a Z-score of -1.35 (8.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 14,834 mm³, 25.5% below the reference mean. With a Z-score of -2.12 (1.7th percentile), this represents significant atrophy; middle temporal gyrus volume measures 22,548 mm³, 0.6% above the reference mean. With a Z-score of 0.05 (52.0th percentile), this represents normal volume . ",
  "text_data": "Age is 64.6 years. Gender is Male. Education: 18 years. MMSE: 22.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows significant atrophy in the fusiform gyrus (Z-score -2.12) and mild atrophy in the hippocampus (Z-score -1.09) and entorhinal cortex (Z-score -1.35), which are key regions affected in Alzheimer's disease. The MMSE score of 22 suggests cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: Dementia (likely Alzheimer's disease)  \nConfidence: Medium (clinical correlation and additional biomarkers would strengthen confidence)",
  "timestamp": "2025-07-26T08:21:21.085308"
}