{
  "ptid_time": "021_S_2077_2014-10-21",
  "img_path": "/data/qiuhui/data/adni/images/021_S_2077/2014-10-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,773 mm³, 13.3% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume ; hippocampal volume measures 7,203 mm³, 3.4% above the reference mean. With a Z-score of 0.29 (61.5th percentile), this represents normal volume ; whole brain volume measures 1,177,070 mm³, 14.4% above the reference mean. With a Z-score of 1.88 (97.0th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 85.0 years. Gender is Male. Education: 20 years. MMSE: 28.0. MoCA: 26.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures (ventricular, hippocampal, and whole brain) are within normal ranges or even above average, suggesting no significant atrophy. Cognitive scores (MMSE 28, MoCA 26) are well within the normal range for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T01:37:50.682089"
}