{
  "ptid_time": "005_S_2390_2012-02-02",
  "img_path": "/data/qiuhui/data/adni/images/005_S_2390/2012-02-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,814 mm³, 46.4% below the reference mean. With a Z-score of -1.25 (10.5th percentile), this represents mild atrophy; hippocampal volume measures 6,375 mm³, 1.8% below the reference mean. With a Z-score of -0.15 (44.1th percentile), this represents normal volume ; whole brain volume measures 911,084 mm³, 1.8% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume . ",
  "text_data": "Age is 88.3 years. Gender is Female. Education: 12 years. MMSE: 29.0. MoCA: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular atrophy but otherwise normal hippocampal and whole brain volumes. Cognitive scores (MMSE 29, MoCA 27) are within normal limits for age, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T21:18:56.977076"
}