{
  "ptid_time": "094_S_1397_2007-04-26",
  "img_path": "/data/qiuhui/data/adni/images/094_S_1397/2007-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,709 mm³, 124.0% above the reference mean. With a Z-score of 3.55 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 6,648 mm³, 14.9% below the reference mean. With a Z-score of -2.07 (1.9th percentile), this represents significant atrophy; whole brain volume measures 961,588 mm³, 7.6% below the reference mean. With a Z-score of -0.91 (18.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,621 mm³, 29.1% below the reference mean. With a Z-score of -2.27 (1.1th percentile), this represents significant atrophy; fusiform gyrus volume measures 13,200 mm³, 28.4% below the reference mean. With a Z-score of -2.58 (0.5th percentile), this represents significant atrophy; middle temporal gyrus volume measures 17,591 mm³, 14.3% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 55.1 years. Gender is Female. Education: 18 years. Handedness: Left. Race: White. Medical history: Psychiatric; Neurologic; Cardiovascular; Major Surgical Procedures. MMSE: 24.0. Logical Memory: 2.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 2.22 SUVR (moderate elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement and significant atrophy in the hippocampus, entorhinal cortex, and fusiform gyrus, which are hallmark structural changes in Alzheimer's disease. The MMSE score of 24 suggests mild cognitive impairment, and the absence of APOE4 does not rule out AD given the strong imaging evidence.  \n\nDiagnosis: **Dementia (likely Alzheimer’s disease)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T10:22:54.596287"
}