{
  "ptid_time": "067_S_4767_2018-06-14",
  "img_path": "/data/qiuhui/data/adni/images/067_S_4767/2018-06-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 68,930 mm³, 145.6% above the reference mean. With a Z-score of 3.33 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 5,852 mm³, 17.8% below the reference mean. With a Z-score of -1.63 (5.2th percentile), this represents moderate atrophy; whole brain volume measures 881,460 mm³, 9.6% below the reference mean. With a Z-score of -1.20 (11.4th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,206 mm³, 12.7% below the reference mean. With a Z-score of -0.78 (21.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,447 mm³, 3.3% below the reference mean. With a Z-score of -0.30 (38.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,467 mm³, 3.7% below the reference mean. With a Z-score of -0.32 (37.5th percentile), this represents normal volume . ",
  "text_data": "Age is 72.4 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (Z-score 3.33) and moderate hippocampal atrophy (Z-score -1.63), which are strong structural indicators of neurodegeneration. However, cognitive scores (MMSE 30, MoCA 29) are intact, and other cortical regions (entorhinal, fusiform, middle temporal) show no significant atrophy.  \nDiagnosis: **MCI** (structural changes suggest early neurodegeneration, but cognition remains normal).  \nConfidence: **Medium** (cognitive scores conflict with imaging findings; APOE4 carrier status increases suspicion, but current cognition is preserved).",
  "timestamp": "2025-07-26T08:40:41.940972"
}