{
  "ptid_time": "041_S_1425_2008-08-07",
  "img_path": "/data/qiuhui/data/adni/images/041_S_1425/2008-08-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,027 mm³, 46.5% below the reference mean. With a Z-score of -1.06 (14.4th percentile), this represents mild atrophy; whole brain volume measures 895,849 mm³, 8.1% below the reference mean. With a Z-score of -1.02 (15.4th percentile), this represents mild atrophy. ",
  "text_data": "Age is 76.6 years. Gender is Female. Education: 16 years. MMSE: 26.0. Logical Memory: 2.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.52 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild atrophy in both ventricular and whole brain volumes, but the Z-scores (-1.06 and -1.02) are only slightly below average. The MMSE score of 26 is within the normal range (≥24), and the absence of APOE4 reduces genetic risk. No significant cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy warrants monitoring, but current cognitive performance is normal)",
  "timestamp": "2025-07-26T07:08:04.448713"
}