{
  "ptid_time": "068_S_4217_2013-12-17",
  "img_path": "/data/qiuhui/data/adni/images/068_S_4217/2013-12-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,203 mm³, 14.8% above the reference mean. With a Z-score of 0.35 (63.8th percentile), this represents normal volume ; hippocampal volume measures 7,512 mm³, 0.6% below the reference mean. With a Z-score of -0.06 (47.6th percentile), this represents normal volume ; whole brain volume measures 1,058,020 mm³, 2.0% below the reference mean. With a Z-score of -0.26 (39.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,801 mm³, 7.3% below the reference mean. With a Z-score of -0.50 (31.0th percentile), this represents normal volume ; fusiform gyrus volume measures 19,298 mm³, 2.4% above the reference mean. With a Z-score of 0.21 (58.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,406 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.1th percentile), this represents normal volume . ",
  "text_data": "Age is 78.4 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 25.0. Logical Memory: 8.0. 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. Cognitive screening scores (MMSE: 28, MoCA: 25) 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": "2025-07-26T09:00:37.915187"
}