{
  "ptid_time": "036_S_0945_2007-06-11",
  "img_path": "/data/qiuhui/data/adni/images/036_S_0945/2007-06-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,782 mm³, 8.5% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; whole brain volume measures 1,146,200 mm³, 6.2% above the reference mean. With a Z-score of 0.80 (78.9th percentile), this represents normal volume . ",
  "text_data": "Age is 72.9 years. Gender is Male. Education: 12 years. MMSE: 26.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular and whole brain volumes are within normal ranges, with no significant atrophy. The MMSE score of 26 is slightly below the typical cutoff of 27-30 for normal cognition but is not strongly indicative of impairment. The absence of APOE4 reduces genetic risk for Alzheimer’s.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (MMSE is borderline, but imaging and genetic data support normal cognition)",
  "timestamp": "2025-07-26T06:07:01.135367"
}