{
  "ptid_time": "037_S_4071_2012-07-09",
  "img_path": "/data/qiuhui/data/adni/images/037_S_4071/2012-07-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 107,448 mm³, 128.5% above the reference mean. With a Z-score of 3.73 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 7,160 mm³, 2.8% above the reference mean. With a Z-score of 0.24 (59.4th percentile), this represents normal volume ; whole brain volume measures 1,122,130 mm³, 9.0% above the reference mean. With a Z-score of 1.18 (88.2th percentile), this represents mild enlargement. ",
  "text_data": "Age is 85.5 years. Gender is Male. Education: 13 years. MMSE: 28.0. MoCA: 20.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The patient shows profound ventricular enlargement (Z-score 3.73), which is strongly associated with neurodegeneration, but hippocampal volume is normal (Z-score 0.24). The MMSE (28/30) is normal, but the MoCA (20/30) suggests mild cognitive impairment (MCI). The discrepancy between MMSE and MoCA, along with ventricular enlargement, points to possible early cognitive decline despite preserved hippocampal volume.  \n\n**Diagnosis:** **MCI**  \n**Confidence:** **Medium** (due to conflicting imaging and cognitive scores, but MoCA suggests impairment)",
  "timestamp": "2025-07-26T06:41:15.244246"
}