{
  "ptid_time": "019_S_4549_2012-10-30",
  "img_path": "/data/qiuhui/data/adni/images/019_S_4549/2012-10-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 80,597 mm³, 109.2% above the reference mean. With a Z-score of 2.62 (99.6th percentile), this represents significant enlargement; hippocampal volume measures 6,598 mm³, 12.7% below the reference mean. With a Z-score of -1.24 (10.7th percentile), this represents mild atrophy; whole brain volume measures 1,208,510 mm³, 12.0% above the reference mean. With a Z-score of 1.55 (94.0th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,747 mm³, 8.6% below the reference mean. With a Z-score of -0.58 (27.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,974 mm³, 9.9% below the reference mean. With a Z-score of -0.84 (20.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,137 mm³, 5.6% below the reference mean. With a Z-score of -0.51 (30.6th percentile), this represents normal volume . ",
  "text_data": "Age is 79.5 years. Gender is Male. Education: 16 years. MMSE: 21.0. MoCA: 20.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows significant ventricular enlargement (Z-score 2.62) and mild hippocampal atrophy (Z-score -1.24), which are structural changes often associated with neurodegenerative processes. Cognitive testing (MMSE 21, MoCA 20) indicates mild cognitive impairment, but the absence of APOE4 suggests a lower genetic risk for Alzheimer's.  \n\nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium (due to mixed imaging findings and cognitive scores, but no APOE4)",
  "timestamp": "2025-07-26T01:07:17.207721"
}