{
  "ptid_time": "032_S_4823_2013-07-22",
  "img_path": "/data/qiuhui/data/adni/images/032_S_4823/2013-07-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 70,460 mm³, 49.9% above the reference mean. With a Z-score of 1.45 (92.6th percentile), this represents mild enlargement; whole brain volume measures 918,658 mm³, 10.7% below the reference mean. With a Z-score of -1.41 (8.0th percentile), this represents mild atrophy. ",
  "text_data": "Age is 83.2 years. Gender is Male. Education: 18 years. MMSE: 29.0. MoCA: 20.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows mild ventricular enlargement and mild whole brain atrophy, which are consistent with age-related changes but could also suggest early neurodegenerative processes. The MMSE score is normal (29/30), but the MoCA score (20/30) indicates possible cognitive impairment, particularly in executive function or attention, despite the absence of APOE4 risk alleles.  \n\n**Diagnosis:** Mild Cognitive Impairment (MCI)  \n**Confidence:** Medium (due to conflicting MMSE/MoCA results and mild imaging findings without strong genetic risk factors)",
  "timestamp": "2025-07-26T05:06:30.937156"
}