{
  "ptid_time": "011_S_0326_2007-10-17",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0326/2007-10-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 59,159 mm³, 53.6% above the reference mean. With a Z-score of 1.28 (90.0th percentile), this represents mild enlargement; whole brain volume measures 1,033,290 mm³, 4.3% below the reference mean. With a Z-score of -0.55 (29.0th percentile), this represents normal volume . ",
  "text_data": "Age is 78.4 years. Gender is Male. Education: 16 years. MMSE: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (53.6% above reference mean), while whole brain volume is within normal limits (4.3% below reference mean). The MMSE score of 25 is borderline, but the absence of APOE4 and only mild structural changes suggest early cognitive decline rather than dementia.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (MMSE is borderline, but imaging changes are mild and APOE4-negative status reduces dementia likelihood)",
  "timestamp": "2025-07-25T22:45:26.896386"
}