{
  "ptid_time": "127_S_6147_2018-02-13",
  "img_path": "/data/qiuhui/data/adni/images/127_S_6147/2018-02-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,908 mm³, 3.7% below the reference mean. With a Z-score of -0.09 (46.5th percentile), this represents normal volume ; hippocampal volume measures 8,187 mm³, 2.0% above the reference mean. With a Z-score of 0.20 (57.9th percentile), this represents normal volume ; whole brain volume measures 1,232,330 mm³, 8.6% above the reference mean. With a Z-score of 1.22 (88.9th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,955 mm³, 16.2% above the reference mean. With a Z-score of 1.12 (86.9th percentile), this represents mild enlargement; fusiform gyrus volume measures 23,216 mm³, 16.6% above the reference mean. With a Z-score of 1.38 (91.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 28,861 mm³, 28.8% above the reference mean. With a Z-score of 2.37 (99.1th percentile), this represents significant enlargement. ",
  "text_data": "Age is 69.6 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.12 SUVR (mild elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal or above-average ranges, with no signs of atrophy. Cognitive scores (MMSE and MoCA) are perfect (30/30), and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T13:29:57.656987"
}