{
  "ptid_time": "127_S_4765_2013-06-19",
  "img_path": "/data/qiuhui/data/adni/images/127_S_4765/2013-06-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,389 mm³, 49.7% below the reference mean. With a Z-score of -1.19 (11.7th percentile), this represents mild atrophy; hippocampal volume measures 6,445 mm³, 14.7% below the reference mean. With a Z-score of -1.44 (7.5th percentile), this represents mild atrophy; whole brain volume measures 1,015,670 mm³, 5.9% below the reference mean. With a Z-score of -0.77 (22.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,631 mm³, 12.9% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume ; fusiform gyrus volume measures 20,485 mm³, 8.7% above the reference mean. With a Z-score of 0.74 (77.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,038 mm³, 15.5% below the reference mean. With a Z-score of -1.39 (8.2th percentile), this represents mild atrophy. ",
  "text_data": "Age is 77.0 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 24.0. Logical Memory: 3.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild atrophy in the hippocampus and middle temporal gyrus, which are key regions affected in Alzheimer's disease, but other brain regions are normal or even above average. Cognitive scores (MMSE 28, MoCA 24) are borderline for MCI but not yet in the dementia range. APOE4 carrier status increases Alzheimer's risk.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (Cognitive scores are near-normal, but structural changes and APOE4 suggest early neurodegenerative changes.)",
  "timestamp": "2025-07-26T13:21:27.899046"
}