{
  "ptid_time": "128_S_0227_2006-03-02",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0227/2006-03-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,474 mm³, 58.5% above the reference mean. With a Z-score of 1.34 (91.0th percentile), this represents mild enlargement; hippocampal volume measures 6,103 mm³, 14.2% below the reference mean. With a Z-score of -1.30 (9.6th percentile), this represents mild atrophy; whole brain volume measures 893,653 mm³, 8.3% below the reference mean. With a Z-score of -1.05 (14.8th percentile), this represents mild atrophy; entorhinal cortex volume measures 1,854 mm³, 49.5% below the reference mean. With a Z-score of -3.04 (0.1th percentile), this represents profound atrophy; fusiform gyrus volume measures 12,891 mm³, 24.2% below the reference mean. With a Z-score of -2.21 (1.4th percentile), this represents significant atrophy; middle temporal gyrus volume measures 15,462 mm³, 19.3% below the reference mean. With a Z-score of -1.68 (4.7th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 79.6 years. Gender is Female. Education: 12 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Major Surgical Procedures. MMSE: 24.0. Logical Memory: 0.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows significant atrophy in key Alzheimer's-related regions (entorhinal cortex, fusiform gyrus, hippocampus), alongside mild whole-brain atrophy and ventricular enlargement. The MMSE score of 24 suggests mild cognitive impairment, and the presence of two APOE4 alleles increases Alzheimer's risk.  \n\n**Diagnosis:** **Dementia (likely Alzheimer’s disease)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T13:39:21.003971"
}