{
  "ptid_time": "014_S_0519_2008-06-26",
  "img_path": "/data/qiuhui/data/adni/images/014_S_0519/2008-06-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 48,576 mm³, 26.1% above the reference mean. With a Z-score of 0.63 (73.4th percentile), this represents normal volume ; hippocampal volume measures 7,763 mm³, 2.7% above the reference mean. With a Z-score of 0.26 (60.4th percentile), this represents normal volume ; whole brain volume measures 1,022,880 mm³, 5.2% below the reference mean. With a Z-score of -0.68 (24.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,519 mm³, 14.2% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; fusiform gyrus volume measures 19,461 mm³, 3.3% above the reference mean. With a Z-score of 0.28 (61.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,942 mm³, 2.8% above the reference mean. With a Z-score of 0.25 (60.0th percentile), this represents normal volume . ",
  "text_data": "Age is 76.1 years. Gender is Male. Education: 16 years. MMSE: 29.0. Logical Memory: 19.0. Laboratory findings: Vitamin B12: 906.00 (significant elevated); Platelets: 374.00 (significant elevated); Cholesterol (High Performance): 323.00 (profound elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 29 is within the normal range (≥26), and the absence of APOE4 alleles further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T23:40:36.646942"
}