{
  "ptid_time": "941_S_1197_2008-05-21",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1197/2008-05-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,030 mm³, 10.6% below the reference mean. With a Z-score of -0.29 (38.7th percentile), this represents normal volume ; hippocampal volume measures 6,144 mm³, 5.4% below the reference mean. With a Z-score of -0.43 (33.2th percentile), this represents normal volume ; whole brain volume measures 873,713 mm³, 5.9% below the reference mean. With a Z-score of -0.70 (24.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,833 mm³, 10.7% above the reference mean. With a Z-score of 0.58 (71.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,894 mm³, 4.9% above the reference mean. With a Z-score of 0.37 (64.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 15,158 mm³, 15.9% below the reference mean. With a Z-score of -1.42 (7.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 83.4 years. Gender is Female. Education: 20 years. MMSE: 28.0. Logical Memory: 10.0. Laboratory findings: Basophils: 0.10 (significant elevated); Serum Glucose: 72.00 (significant reduced); Triglycerides (GPO): 273.00 (significant elevated); Cholesterol (High Performance): 301.00 (profound elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only mild atrophy noted in the middle temporal gyrus. The MMSE score of 28 is within the normal range, and the absence of APOE4 alleles reduces genetic risk. No significant hippocampal or entorhinal cortex atrophy is present, which are key markers for Alzheimer's disease.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy in the middle temporal gyrus, but overall normal cognitive and biomarker profile)",
  "timestamp": "2025-07-26T17:28:42.755481"
}