{
  "ptid_time": "023_S_4115_2012-03-27",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4115/2012-03-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,400 mm³, 18.7% below the reference mean. With a Z-score of -0.45 (32.8th percentile), this represents normal volume ; hippocampal volume measures 8,953 mm³, 11.5% above the reference mean. With a Z-score of 1.15 (87.6th percentile), this represents mild enlargement; whole brain volume measures 1,143,380 mm³, 0.8% above the reference mean. With a Z-score of 0.11 (54.4th percentile), this represents normal volume ; entorhinal cortex volume measures 5,253 mm³, 23.2% above the reference mean. With a Z-score of 1.61 (94.6th percentile), this represents moderate enlargement; fusiform gyrus volume measures 20,580 mm³, 3.4% above the reference mean. With a Z-score of 0.28 (61.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,981 mm³, 2.5% above the reference mean. With a Z-score of 0.21 (58.3th percentile), this represents normal volume . ",
  "text_data": "Age is 67.9 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal or above-average volumes in all measured regions, including the hippocampus and entorhinal cortex, which are typically affected in Alzheimer's disease. Cognitive scores (MMSE 30, MoCA 25) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:02:10.219405"
}