{
  "ptid_time": "002_S_1280_2009-02-19",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1280/2009-02-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,475 mm³, 23.5% below the reference mean. With a Z-score of -0.54 (29.5th percentile), this represents normal volume ; hippocampal volume measures 6,768 mm³, 4.9% below the reference mean. With a Z-score of -0.45 (32.8th percentile), this represents normal volume ; whole brain volume measures 968,330 mm³, 0.6% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,388 mm³, 7.8% below the reference mean. With a Z-score of -0.48 (31.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,088 mm³, 5.4% below the reference mean. With a Z-score of -0.49 (31.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,273 mm³, 9.9% below the reference mean. With a Z-score of -0.86 (19.5th percentile), this represents normal volume . ",
  "text_data": "Age is 72.7 years. Gender is Female. Education: 14 years. MMSE: 30.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "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 30 is also within the normal range, indicating no significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:16:32.828137"
}