{
  "ptid_time": "021_S_2124_2013-11-12",
  "img_path": "/data/qiuhui/data/adni/images/021_S_2124/2013-11-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,500 mm³, 6.9% above the reference mean. With a Z-score of 0.19 (57.3th percentile), this represents normal volume ; hippocampal volume measures 6,863 mm³, 5.7% above the reference mean. With a Z-score of 0.45 (67.5th percentile), this represents normal volume ; whole brain volume measures 1,082,560 mm³, 16.6% above the reference mean. With a Z-score of 2.00 (97.7th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 85.3 years. Gender is Female. Education: 15 years. MMSE: 26.0. MoCA: 25.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes (ventricular, hippocampal, and whole brain) are all within normal or above-average ranges, with no significant atrophy. Cognitive scores (MMSE 26, MoCA 25) are borderline but still within normal limits for age, and the absence of APOE4 reduces genetic risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline cognitive scores despite normal imaging)",
  "timestamp": "2025-07-26T01:39:09.449243"
}