{
  "ptid_time": "141_S_6178_2018-02-08",
  "img_path": "/data/qiuhui/data/adni/images/141_S_6178/2018-02-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,503 mm³, 3.7% below the reference mean. With a Z-score of -0.09 (46.3th percentile), this represents normal volume ; hippocampal volume measures 7,561 mm³, 1.6% below the reference mean. With a Z-score of -0.18 (42.8th percentile), this represents normal volume ; whole brain volume measures 973,938 mm³, 5.4% below the reference mean. With a Z-score of -0.67 (25.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,188 mm³, 7.6% above the reference mean. With a Z-score of 0.59 (72.2th percentile), this represents normal volume ; fusiform gyrus volume measures 18,484 mm³, 1.5% above the reference mean. With a Z-score of 0.17 (56.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,691 mm³, 20.3% above the reference mean. With a Z-score of 1.81 (96.5th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 66.0 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 25.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.37 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges except for the middle temporal gyrus, which shows moderate enlargement. Cognitive scores (MMSE 30, MoCA 25) are within normal limits for age, and APOE4 status (heterozygous) does not strongly indicate immediate risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to MoCA being borderline and middle temporal gyrus enlargement, though other markers are normal)",
  "timestamp": "2025-07-26T17:07:47.002114"
}