{
  "ptid_time": "037_S_4071_2012-01-23",
  "img_path": "/data/qiuhui/data/adni/images/037_S_4071/2012-01-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 110,696 mm³, 135.4% above the reference mean. With a Z-score of 3.93 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 7,385 mm³, 6.0% above the reference mean. With a Z-score of 0.52 (69.7th percentile), this represents normal volume ; whole brain volume measures 1,129,050 mm³, 9.7% above the reference mean. With a Z-score of 1.27 (89.8th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,052 mm³, 2.1% above the reference mean. With a Z-score of 0.14 (55.4th percentile), this represents normal volume ; fusiform gyrus volume measures 15,933 mm³, 11.8% below the reference mean. With a Z-score of -1.02 (15.3th percentile), this represents mild atrophy; middle temporal gyrus volume measures 23,286 mm³, 15.4% above the reference mean. With a Z-score of 1.38 (91.7th percentile), this represents mild enlargement. ",
  "text_data": "Age is 85.0 years. Gender is Male. Education: 13 years. MMSE: 28.0. MoCA: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (Z-score 3.93) and mild fusiform gyrus atrophy (Z-score -1.02), which are concerning for neurodegenerative changes. However, hippocampal and entorhinal cortex volumes are normal, and the MMSE is intact (28/30), but the MoCA (16/30) suggests significant cognitive impairment, likely due to executive dysfunction or non-amnestic deficits.  \n\nDiagnosis: **Mild Cognitive Impairment (MCI)** (likely non-amnestic subtype)  \nConfidence: **Medium** (due to conflicting MMSE/MoCA scores and mixed structural findings)",
  "timestamp": "2025-07-26T06:41:07.920467"
}