{
  "ptid_time": "041_S_0679_2012-07-18",
  "img_path": "/data/qiuhui/data/adni/images/041_S_0679/2012-07-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,520 mm³, 28.3% below the reference mean. With a Z-score of -0.67 (25.0th percentile), this represents normal volume ; hippocampal volume measures 7,932 mm³, 1.2% below the reference mean. With a Z-score of -0.12 (45.3th percentile), this represents normal volume ; whole brain volume measures 1,147,440 mm³, 1.1% above the reference mean. With a Z-score of 0.16 (56.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,483 mm³, 5.2% above the reference mean. With a Z-score of 0.36 (64.0th percentile), this represents normal volume ; fusiform gyrus volume measures 18,589 mm³, 6.6% below the reference mean. With a Z-score of -0.55 (29.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,233 mm³, 0.8% below the reference mean. With a Z-score of -0.07 (47.4th percentile), this represents normal volume . ",
  "text_data": "Age is 68.9 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 17.0. 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 30, MoCA 27) are also within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:00:43.140372"
}