{
  "ptid_time": "021_S_4254_2019-04-08",
  "img_path": "/data/qiuhui/data/adni/images/021_S_4254/2019-04-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,336 mm³, 5.4% below the reference mean. With a Z-score of -0.86 (19.6th percentile), this represents normal volume ; whole brain volume measures 826,162 mm³, 9.2% below the reference mean. With a Z-score of -1.03 (15.2th percentile), this represents mild atrophy. ",
  "text_data": "Age is 93.4 years. Gender is Female. Education: 12 years. MMSE: 26.0. MoCA: 26.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.16 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in whole brain volume but normal ventricular volume. Cognitive scores (MMSE and MoCA) are within normal ranges for age, and there is no significant biomarker evidence (APOE4 negative, normal AV45) to suggest Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy but normal cognitive scores and biomarkers)",
  "timestamp": "2025-07-26T01:43:06.004498"
}