{
  "ptid_time": "012_S_1175_2007-07-30",
  "img_path": "/data/qiuhui/data/adni/images/012_S_1175/2007-07-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,991 mm³, 37.7% below the reference mean. With a Z-score of -0.90 (18.3th percentile), this represents normal volume ; hippocampal volume measures 7,314 mm³, 3.2% below the reference mean. With a Z-score of -0.32 (37.6th percentile), this represents normal volume ; whole brain volume measures 1,075,100 mm³, 0.4% below the reference mean. With a Z-score of -0.05 (47.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,583 mm³, 12.6% below the reference mean. With a Z-score of -0.86 (19.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,802 mm³, 0.2% below the reference mean. With a Z-score of -0.02 (49.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,111 mm³, 5.8% below the reference mean. With a Z-score of -0.52 (30.2th percentile), this represents normal volume . ",
  "text_data": "Age is 73.2 years. Gender is Male. Education: 13 years. MMSE: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) all fall within normal ranges based on Z-scores and percentiles. The MMSE score of 25 is slightly below the typical cutoff of 26 for cognitive normality but is not strongly indicative of MCI or dementia, especially in the absence of significant atrophy or APOE4 risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline MMSE score but otherwise normal biomarkers)",
  "timestamp": "2025-07-25T23:08:44.246186"
}