{
  "ptid_time": "018_S_2180_2011-07-26",
  "img_path": "/data/qiuhui/data/adni/images/018_S_2180/2011-07-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,277 mm³, 38.4% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; hippocampal volume measures 7,589 mm³, 6.7% above the reference mean. With a Z-score of 0.61 (73.0th percentile), this represents normal volume ; whole brain volume measures 952,608 mm³, 2.3% below the reference mean. With a Z-score of -0.28 (38.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,561 mm³, 24.2% above the reference mean. With a Z-score of 1.48 (93.1th percentile), this represents mild enlargement; fusiform gyrus volume measures 16,867 mm³, 0.9% below the reference mean. With a Z-score of -0.08 (46.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,013 mm³, 0.8% below the reference mean. With a Z-score of -0.07 (47.2th percentile), this represents normal volume . ",
  "text_data": "Age is 78.1 years. Gender is Female. Education: 12 years. MMSE: 29.0. MoCA: 26.0. Laboratory findings: LDH: 235.00 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges, with the entorhinal cortex showing mild enlargement. Cognitive scores (MMSE 29, MoCA 26) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T00:54:55.130554"
}