{
  "ptid_time": "002_S_0782_2009-09-04",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0782/2009-09-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 99,958 mm³, 112.6% above the reference mean. With a Z-score of 3.27 (99.9th percentile), this represents profound enlargement; whole brain volume measures 1,007,600 mm³, 2.1% below the reference mean. With a Z-score of -0.27 (39.2th percentile), this represents normal volume . ",
  "text_data": "Age is 84.6 years. Gender is Male. Education: 16 years. MMSE: 28.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (Z-score 3.27), which is a strong indicator of neurodegeneration, while whole brain volume is within normal limits. The MMSE score of 28 is normal, but the profound ventricular enlargement suggests underlying pathology despite preserved cognition.  \nDiagnosis: **MCI** (early neurodegenerative changes with intact cognition)  \nConfidence: **Medium** (clinical correlation needed; ventricular enlargement is concerning, but MMSE is normal)",
  "timestamp": "2025-07-25T20:06:35.183492"
}