{
  "ptid_time": "116_S_1232_2010-02-11",
  "img_path": "/data/qiuhui/data/adni/images/116_S_1232/2010-02-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,294 mm³, 41.9% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; hippocampal volume measures 6,989 mm³, 1.8% below the reference mean. With a Z-score of -0.16 (43.6th percentile), this represents normal volume ; whole brain volume measures 945,808 mm³, 3.0% below the reference mean. With a Z-score of -0.37 (35.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,682 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.6th percentile), this represents normal volume ; fusiform gyrus volume measures 16,810 mm³, 1.2% below the reference mean. With a Z-score of -0.11 (45.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,999 mm³, 6.1% below the reference mean. With a Z-score of -0.53 (29.8th percentile), this represents normal volume . ",
  "text_data": "Age is 75.1 years. Gender is Female. Education: 14 years. MMSE: 29.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, 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 29/30 is within the normal range, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:00:34.405583"
}