{
  "ptid_time": "053_S_0389_2007-11-14",
  "img_path": "/data/qiuhui/data/adni/images/053_S_0389/2007-11-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,570 mm³, 48.1% above the reference mean. With a Z-score of 1.10 (86.5th percentile), this represents mild enlargement; hippocampal volume measures 4,771 mm³, 32.9% below the reference mean. With a Z-score of -3.02 (0.1th percentile), this represents profound atrophy; whole brain volume measures 1,031,540 mm³, 5.8% above the reference mean. With a Z-score of 0.73 (76.9th percentile), this represents normal volume ; entorhinal cortex volume measures 2,395 mm³, 34.8% below the reference mean. With a Z-score of -2.14 (1.6th percentile), this represents significant atrophy; fusiform gyrus volume measures 18,508 mm³, 8.8% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,197 mm³, 10.3% below the reference mean. With a Z-score of -0.89 (18.6th percentile), this represents normal volume . ",
  "text_data": "Age is 73.0 years. Gender is Female. Education: 16 years. MMSE: 26.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The data shows profound hippocampal atrophy (Z-score -3.02) and significant entorhinal cortex atrophy (Z-score -2.14), both key regions affected in Alzheimer's disease. The MMSE score of 26 is borderline, but the structural changes suggest neurodegeneration consistent with early dementia.  \nDiagnosis: Dementia  \nConfidence: Medium (High confidence in neurodegeneration, but clinical correlation needed for definitive dementia diagnosis due to borderline MMSE).",
  "timestamp": "2025-07-26T07:53:37.114669"
}