{
  "ptid_time": "022_S_6797_2019-08-28",
  "img_path": "/data/qiuhui/data/adni/images/022_S_6797/2019-08-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,720 mm³, 33.1% above the reference mean. With a Z-score of 0.83 (79.6th percentile), this represents normal volume ; hippocampal volume measures 7,619 mm³, 0.8% below the reference mean. With a Z-score of -0.10 (46.2th percentile), this represents normal volume ; whole brain volume measures 1,038,890 mm³, 0.9% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,716 mm³, 21.1% above the reference mean. With a Z-score of 1.64 (94.9th percentile), this represents moderate enlargement; fusiform gyrus volume measures 18,305 mm³, 0.5% above the reference mean. With a Z-score of 0.06 (52.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,603 mm³, 4.5% below the reference mean. With a Z-score of -0.40 (34.6th percentile), this represents normal volume . ",
  "text_data": "Age is 67.1 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 29.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.02 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with only the entorhinal cortex showing moderate enlargement (Z-score 1.64, 94.9th percentile). Cognitive scores (MMSE 30, MoCA 29) are intact, and there is no evidence of hippocampal atrophy or significant cortical thinning. APOE4 carrier status is present but does not currently correlate with structural or cognitive impairment.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T02:24:40.869445"
}