{
  "ptid_time": "073_S_0386_2008-08-21",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0386/2008-08-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,831 mm³, 25.8% below the reference mean. With a Z-score of -0.59 (27.7th percentile), this represents normal volume ; hippocampal volume measures 7,381 mm³, 3.7% above the reference mean. With a Z-score of 0.34 (63.4th percentile), this represents normal volume ; whole brain volume measures 1,024,730 mm³, 5.1% above the reference mean. With a Z-score of 0.65 (74.1th percentile), this represents normal volume ; entorhinal cortex volume measures 2,941 mm³, 19.9% below the reference mean. With a Z-score of -1.22 (11.1th percentile), this represents mild atrophy; fusiform gyrus volume measures 19,174 mm³, 12.7% above the reference mean. With a Z-score of 1.16 (87.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,547 mm³, 2.0% above the reference mean. With a Z-score of 0.17 (56.8th percentile), this represents normal volume . ",
  "text_data": "Age is 74.3 years. Gender is Female. Education: 13 years. MMSE: 30.0. Logical Memory: 14.0. Laboratory findings: GGT: 63.00 (profound elevated). APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures show mostly normal values, with mild atrophy in the entorhinal cortex (Z-score -1.22, 11.1th percentile) and mild enlargement in the fusiform gyrus (Z-score 1.16, 87.6th percentile). The MMSE score of 30 is within the normal range, and there are no significant cognitive complaints reported.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild entorhinal cortex atrophy, but no cognitive impairment or other significant structural abnormalities)",
  "timestamp": "2025-07-26T09:30:35.770514"
}