{
  "ptid_time": "037_S_6032_2017-06-15",
  "img_path": "/data/qiuhui/data/adni/images/037_S_6032/2017-06-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,880 mm³, 2.4% above the reference mean. With a Z-score of 0.06 (52.4th percentile), this represents normal volume ; hippocampal volume measures 7,878 mm³, 2.5% above the reference mean. With a Z-score of 0.28 (61.1th percentile), this represents normal volume ; whole brain volume measures 1,058,590 mm³, 2.9% above the reference mean. With a Z-score of 0.36 (63.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,521 mm³, 16.1% above the reference mean. With a Z-score of 1.25 (89.4th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,790 mm³, 8.7% above the reference mean. With a Z-score of 0.98 (83.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,644 mm³, 5.5% above the reference mean. With a Z-score of 0.49 (68.7th percentile), this represents normal volume . ",
  "text_data": "Age is 66.3 years. Gender is Female. Education: 15 years. Handedness: Right. Race: Asian. MMSE: 29.0. MoCA: 22.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.08 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes (ventricular, hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are all within normal ranges or mildly enlarged (entorhinal cortex). The MMSE score (29/30) is normal, but the MoCA (22/30) suggests mild cognitive impairment. No APOE4 alleles reduce Alzheimer’s risk.  \n**Diagnosis:** **MCI** (due to MoCA score discrepancy despite normal imaging)  \n**Confidence:** **Medium** (imaging does not support neurodegeneration, but MoCA indicates cognitive decline)",
  "timestamp": "2025-07-26T06:52:58.905200"
}