{
  "ptid_time": "033_S_1279_2007-02-12",
  "img_path": "/data/qiuhui/data/adni/images/033_S_1279/2007-02-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,883 mm³, 42.3% below the reference mean. With a Z-score of -1.06 (14.5th percentile), this represents mild atrophy; hippocampal volume measures 6,137 mm³, 20.1% below the reference mean. With a Z-score of -2.26 (1.2th percentile), this represents significant atrophy; whole brain volume measures 1,011,820 mm³, 1.7% below the reference mean. With a Z-score of -0.21 (41.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,265 mm³, 16.1% below the reference mean. With a Z-score of -1.25 (10.6th percentile), this represents mild atrophy; fusiform gyrus volume measures 16,320 mm³, 10.4% below the reference mean. With a Z-score of -1.17 (12.1th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,564 mm³, 5.1% above the reference mean. With a Z-score of 0.45 (67.5th percentile), this represents normal volume . ",
  "text_data": "Age is 68.3 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Gastrointestinal; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 24.0. Logical Memory: 8.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows significant hippocampal atrophy (Z-score -2.26, 1.2th percentile), which is strongly associated with Alzheimer's disease, along with mild atrophy in the entorhinal cortex and fusiform gyrus. 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": "2025-07-26T05:30:49.272143"
}