{
  "ptid_time": "116_S_1315_2007-09-21",
  "img_path": "/data/qiuhui/data/adni/images/116_S_1315/2007-09-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,732 mm³, 14.2% below the reference mean. With a Z-score of -0.38 (35.1th percentile), this represents normal volume ; hippocampal volume measures 5,885 mm³, 9.4% below the reference mean. With a Z-score of -0.75 (22.6th percentile), this represents normal volume ; whole brain volume measures 943,663 mm³, 1.7% above the reference mean. With a Z-score of 0.20 (57.9th percentile), this represents normal volume ; entorhinal cortex volume measures 2,969 mm³, 14.3% below the reference mean. With a Z-score of -0.77 (22.1th percentile), this represents normal volume ; fusiform gyrus volume measures 12,293 mm³, 23.7% below the reference mean. With a Z-score of -1.78 (3.7th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 17,338 mm³, 3.8% below the reference mean. With a Z-score of -0.34 (36.7th percentile), this represents normal volume . ",
  "text_data": "Age is 83.8 years. Gender is Female. Education: 14 years. MMSE: 24.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The MMSE score of 24 suggests mild cognitive impairment, and the fusiform gyrus shows moderate atrophy (Z-score -1.78, 3.7th percentile), which is concerning for early neurodegenerative changes. However, other brain volumes, including hippocampal and entorhinal cortex, are within normal limits, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T12:04:59.787859"
}