{
  "ptid_time": "127_S_2234_2020-01-15",
  "img_path": "/data/qiuhui/data/adni/images/127_S_2234/2020-01-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,036 mm³, 32.0% above the reference mean. With a Z-score of 0.73 (76.8th percentile), this represents normal volume ; hippocampal volume measures 6,636 mm³, 6.7% below the reference mean. With a Z-score of -0.62 (26.9th percentile), this represents normal volume ; whole brain volume measures 912,242 mm³, 6.4% below the reference mean. With a Z-score of -0.81 (21.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,698 mm³, 0.7% above the reference mean. With a Z-score of 0.04 (51.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,511 mm³, 2.9% above the reference mean. With a Z-score of 0.27 (60.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,670 mm³, 13.0% above the reference mean. With a Z-score of 1.13 (87.1th percentile), this represents mild enlargement. ",
  "text_data": "Age is 72.6 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.96 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges, with only the middle temporal gyrus showing mild enlargement. Cognitive scores (MMSE, MoCA) are perfect, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:13:02.787282"
}