{
  "ptid_time": "018_S_4313_2012-11-28",
  "img_path": "/data/qiuhui/data/adni/images/018_S_4313/2012-11-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,539 mm³, 5.4% below the reference mean. With a Z-score of -0.12 (45.0th percentile), this represents normal volume ; hippocampal volume measures 7,924 mm³, 11.4% above the reference mean. With a Z-score of 1.04 (85.2th percentile), this represents mild enlargement; whole brain volume measures 1,042,440 mm³, 7.0% above the reference mean. With a Z-score of 0.88 (80.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,221 mm³, 14.9% above the reference mean. With a Z-score of 0.92 (82.0th percentile), this represents normal volume ; fusiform gyrus volume measures 15,275 mm³, 10.2% below the reference mean. With a Z-score of -0.93 (17.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,183 mm³, 10.5% above the reference mean. With a Z-score of 0.91 (81.9th percentile), this represents normal volume . ",
  "text_data": "Age is 78.0 years. Gender is Female. Education: 18 years. MMSE: 25.0. MoCA: 22.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes are largely within normal ranges or slightly above average, with the exception of the fusiform gyrus, which is mildly reduced but still within the normal range. The MMSE (25) and MoCA (22) scores suggest mild cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk but does not confirm it.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T00:56:29.960987"
}