{
  "ptid_time": "137_S_4536_2013-03-21",
  "img_path": "/data/qiuhui/data/adni/images/137_S_4536/2013-03-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,405 mm³, 36.8% above the reference mean. With a Z-score of 0.84 (80.0th percentile), this represents normal volume ; hippocampal volume measures 5,662 mm³, 20.4% below the reference mean. With a Z-score of -1.87 (3.1th percentile), this represents moderate atrophy; whole brain volume measures 969,217 mm³, 0.6% below the reference mean. With a Z-score of -0.07 (47.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,746 mm³, 25.2% below the reference mean. With a Z-score of -1.55 (6.1th percentile), this represents moderate atrophy; fusiform gyrus volume measures 17,352 mm³, 2.0% above the reference mean. With a Z-score of 0.18 (57.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,041 mm³, 5.9% below the reference mean. With a Z-score of -0.51 (30.5th percentile), this represents normal volume . ",
  "text_data": "Age is 78.9 years. Gender is Female. Education: 17 years. MMSE: 26.0. MoCA: 20.0. Logical Memory: 4.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal and entorhinal cortex volumes show moderate atrophy (Z-scores of -1.87 and -1.55, respectively), which are key regions affected in Alzheimer's disease. The MMSE score of 26 is borderline, but the MoCA score of 20 suggests mild cognitive impairment, consistent with the observed atrophy patterns.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T16:35:24.500881"
}