{
  "ptid_time": "027_S_0461_2006-12-06",
  "img_path": "/data/qiuhui/data/adni/images/027_S_0461/2006-12-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 73,935 mm³, 57.3% above the reference mean. With a Z-score of 1.66 (95.2th percentile), this represents moderate enlargement; hippocampal volume measures 5,892 mm³, 15.4% below the reference mean. With a Z-score of -1.33 (9.1th percentile), this represents mild atrophy; whole brain volume measures 994,981 mm³, 3.3% below the reference mean. With a Z-score of -0.44 (33.2th percentile), this represents normal volume ; entorhinal cortex volume measures 2,578 mm³, 35.0% below the reference mean. With a Z-score of -2.29 (1.1th percentile), this represents significant atrophy; fusiform gyrus volume measures 18,440 mm³, 2.1% above the reference mean. With a Z-score of 0.18 (57.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,259 mm³, 19.4% below the reference mean. With a Z-score of -1.74 (4.1th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 80.8 years. Gender is Male. Education: 19 years. MMSE: 24.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows significant atrophy in the entorhinal cortex and moderate atrophy in the hippocampus and middle temporal gyrus, which are key regions affected in Alzheimer's disease. The MMSE score of 24 suggests mild cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: **Mild Cognitive Impairment (MCI)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T03:39:13.296516"
}