{
  "ptid_time": "006_S_4867_2013-10-14",
  "img_path": "/data/qiuhui/data/adni/images/006_S_4867/2013-10-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,306 mm³, 3.1% below the reference mean. With a Z-score of -0.08 (47.0th percentile), this represents normal volume ; hippocampal volume measures 5,348 mm³, 29.3% below the reference mean. With a Z-score of -2.85 (0.2th percentile), this represents significant atrophy; whole brain volume measures 843,716 mm³, 21.8% below the reference mean. With a Z-score of -2.83 (0.2th percentile), this represents significant atrophy; entorhinal cortex volume measures 3,030 mm³, 26.1% below the reference mean. With a Z-score of -1.77 (3.8th percentile), this represents moderate atrophy; fusiform gyrus volume measures 16,198 mm³, 14.0% below the reference mean. With a Z-score of -1.19 (11.6th percentile), this represents mild atrophy; middle temporal gyrus volume measures 15,460 mm³, 27.6% below the reference mean. With a Z-score of -2.48 (0.7th percentile), this represents significant atrophy. ",
  "text_data": "Age is 75.4 years. Gender is Male. Education: 12 years. MMSE: 24.0. MoCA: 14.0. Logical Memory: 0.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows significant atrophy in the hippocampus, whole brain, and middle temporal gyrus, along with moderate atrophy in the entorhinal cortex—all key regions affected in Alzheimer's disease. The cognitive scores (MMSE 24, MoCA 14) are below normal thresholds, and the presence of two APOE4 alleles further increases Alzheimer's risk.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-25T21:41:25.639659"
}