{
  "ptid_time": "002_S_4799_2013-01-10",
  "img_path": "/data/qiuhui/data/adni/images/002_S_4799/2013-01-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,461 mm³, 21.4% above the reference mean. With a Z-score of 0.51 (69.5th percentile), this represents normal volume ; hippocampal volume measures 7,874 mm³, 1.9% below the reference mean. With a Z-score of -0.19 (42.4th percentile), this represents normal volume ; whole brain volume measures 1,203,020 mm³, 6.0% above the reference mean. With a Z-score of 0.85 (80.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,828 mm³, 10.2% below the reference mean. With a Z-score of -0.71 (24.0th percentile), this represents normal volume ; fusiform gyrus volume measures 21,272 mm³, 6.8% above the reference mean. With a Z-score of 0.57 (71.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,788 mm³, 10.6% above the reference mean. With a Z-score of 0.87 (80.9th percentile), this represents normal volume . ",
  "text_data": "Age is 68.5 years. Gender is Male. Education: 14 years. MMSE: 30.0. MoCA: 25.0. Laboratory findings: Monocytes: 10.00 (significant elevated); Total Bilirubin: 0.90 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are within normal ranges (Z-scores between -0.71 and 0.87), with no significant atrophy in key regions like the hippocampus or entorhinal cortex. The MMSE score of 30 is normal, but the MoCA score of 25 suggests possible mild cognitive impairment (MCI), though APOE4-negative status lowers Alzheimer's risk.  \n\n**Diagnosis:** **MCI** (due to borderline MoCA score despite normal imaging and MMSE).  \n\n**Confidence:** **Medium** (MoCA suggests MCI, but imaging and APOE4 status do not strongly support progression to dementia).",
  "timestamp": "2025-07-25T20:31:51.522732"
}