{
  "ptid_time": "014_S_0558_2009-07-07",
  "img_path": "/data/qiuhui/data/adni/images/014_S_0558/2009-07-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 54,966 mm³, 16.9% above the reference mean. With a Z-score of 0.49 (68.8th percentile), this represents normal volume ; hippocampal volume measures 6,297 mm³, 9.6% below the reference mean. With a Z-score of -0.83 (20.3th percentile), this represents normal volume ; whole brain volume measures 1,044,100 mm³, 1.5% above the reference mean. With a Z-score of 0.19 (57.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,657 mm³, 7.9% below the reference mean. With a Z-score of -0.51 (30.3th percentile), this represents normal volume ; fusiform gyrus volume measures 19,140 mm³, 5.9% above the reference mean. With a Z-score of 0.51 (69.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,290 mm³, 0.6% above the reference mean. With a Z-score of 0.05 (52.1th percentile), this represents normal volume . ",
  "text_data": "Age is 82.8 years. Gender is Male. Education: 19 years. MMSE: 30.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 30 is also within the normal range, and there is no APOE4 allele present, which reduces genetic risk for Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:44:34.833813"
}