{
  "ptid_time": "130_S_4417_2013-02-06",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4417/2013-02-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,936 mm³, 40.0% above the reference mean. With a Z-score of 0.96 (83.1th percentile), this represents normal volume ; hippocampal volume measures 7,697 mm³, 1.8% above the reference mean. With a Z-score of 0.18 (57.1th percentile), this represents normal volume ; whole brain volume measures 1,119,450 mm³, 3.7% above the reference mean. With a Z-score of 0.48 (68.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,359 mm³, 6.3% above the reference mean. With a Z-score of 0.43 (66.5th percentile), this represents normal volume ; fusiform gyrus volume measures 20,621 mm³, 9.5% above the reference mean. With a Z-score of 0.81 (79.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,334 mm³, 4.7% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume . ",
  "text_data": "Age is 75.4 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 24.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores and percentiles indicating no significant atrophy. The MMSE score of 30 is normal, but the MoCA score of 24 suggests mild cognitive impairment (MCI), though APOE4-negative status lowers Alzheimer's risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T14:44:35.968024"
}