{
  "ptid_time": "013_S_0996_2006-11-06",
  "img_path": "/data/qiuhui/data/adni/images/013_S_0996/2006-11-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,494 mm³, 5.1% below the reference mean. With a Z-score of -0.80 (21.3th percentile), this represents normal volume ; hippocampal volume measures 5,694 mm³, 19.1% below the reference mean. With a Z-score of -10.54 (0.0th percentile), this represents profound atrophy; whole brain volume measures 824,632 mm³, 9.4% below the reference mean. With a Z-score of -1.05 (14.8th percentile), this represents mild atrophy; entorhinal cortex volume measures 2,982 mm³, 21.4% below the reference mean. With a Z-score of -1.97 (2.5th percentile), this represents moderate atrophy; fusiform gyrus volume measures 15,548 mm³, 6.1% above the reference mean. With a Z-score of 0.78 (78.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 14,766 mm³, 18.2% below the reference mean. With a Z-score of -9.56 (0.0th percentile), this represents profound atrophy. ",
  "text_data": "Age is 90.9 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Smoking; Malignancy; Major Surgical Procedures. MMSE: 26.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows profound atrophy in the hippocampus and middle temporal gyrus, which are key regions affected in Alzheimer's disease (AD). The MMSE score of 26 is borderline, but the structural changes, particularly the hippocampal atrophy (Z-score -10.54), strongly suggest neurodegeneration consistent with dementia, likely AD.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-25T23:23:12.954089"
}