{
  "ptid_time": "032_S_0718_2007-03-05",
  "img_path": "/data/qiuhui/data/adni/images/032_S_0718/2007-03-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,015 mm³, 13.7% above the reference mean. With a Z-score of 0.37 (64.4th percentile), this represents normal volume ; hippocampal volume measures 7,042 mm³, 8.4% above the reference mean. With a Z-score of 0.67 (75.0th percentile), this represents normal volume ; whole brain volume measures 968,836 mm³, 4.4% above the reference mean. With a Z-score of 0.53 (70.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,417 mm³, 1.3% below the reference mean. With a Z-score of -0.07 (47.2th percentile), this represents normal volume ; fusiform gyrus volume measures 16,913 mm³, 5.0% above the reference mean. With a Z-score of 0.37 (64.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,409 mm³, 3.4% below the reference mean. With a Z-score of -0.31 (38.0th percentile), this represents normal volume . ",
  "text_data": "Age is 80.9 years. Gender is Female. Education: 18 years. MMSE: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (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 28 is within the normal range (≥26), and the absence of APOE4 alleles further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:57:47.198929"
}