{
  "ptid_time": "128_S_1406_2007-05-18",
  "img_path": "/data/qiuhui/data/adni/images/128_S_1406/2007-05-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,815 mm³, 33.7% below the reference mean. With a Z-score of -0.84 (20.0th percentile), this represents normal volume ; hippocampal volume measures 7,644 mm³, 0.5% below the reference mean. With a Z-score of -0.06 (47.6th percentile), this represents normal volume ; whole brain volume measures 1,072,080 mm³, 4.2% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,846 mm³, 24.5% above the reference mean. With a Z-score of 1.90 (97.1th percentile), this represents moderate enlargement; fusiform gyrus volume measures 16,903 mm³, 7.2% below the reference mean. With a Z-score of -0.81 (20.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,142 mm³, 7.9% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume . ",
  "text_data": "Age is 61.1 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Endocrine-Metabolic. MMSE: 27.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.18 SUVR (mild reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements, including hippocampal and ventricular volumes, are within normal ranges (Z-scores close to 0, percentiles near 50th). The MMSE score of 27 is within the normal range (≥26), and there is no APOE4 genetic risk factor. No significant atrophy or biomarker abnormalities suggest cognitive impairment.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:54:12.411658"
}