{
  "ptid_time": "029_S_4327_2013-01-09",
  "img_path": "/data/qiuhui/data/adni/images/029_S_4327/2013-01-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 65,889 mm³, 40.1% above the reference mean. With a Z-score of 1.17 (87.8th percentile), this represents mild enlargement; hippocampal volume measures 7,548 mm³, 8.3% above the reference mean. With a Z-score of 0.72 (76.4th percentile), this represents normal volume ; whole brain volume measures 1,095,160 mm³, 6.4% above the reference mean. With a Z-score of 0.84 (80.0th percentile), this represents normal volume . ",
  "text_data": "Age is 83.9 years. Gender is Male. Education: 12 years. MMSE: 25.0. MoCA: 27.0. Logical Memory: 11.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (40.1% above reference mean), but hippocampal and whole brain volumes are within normal ranges. Cognitive scores (MMSE 25, MoCA 27) are borderline for mild cognitive impairment but still within normal limits for age. APOE4 homozygosity (2.0) is a strong genetic risk factor but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline cognitive scores and APOE4 status, but normal hippocampal/whole brain volumes suggest no significant neurodegeneration)",
  "timestamp": "2025-07-26T04:28:36.952725"
}