{
  "ptid_time": "021_S_0159_2010-03-16",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0159/2010-03-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,472 mm³, 31.1% below the reference mean. With a Z-score of -0.84 (20.1th percentile), this represents normal volume ; hippocampal volume measures 6,132 mm³, 5.6% below the reference mean. With a Z-score of -0.45 (32.7th percentile), this represents normal volume ; whole brain volume measures 897,773 mm³, 3.3% below the reference mean. With a Z-score of -0.39 (34.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,001 mm³, 13.3% below the reference mean. With a Z-score of -0.72 (23.6th percentile), this represents normal volume ; fusiform gyrus volume measures 15,794 mm³, 2.0% below the reference mean. With a Z-score of -0.15 (44.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,372 mm³, 9.2% below the reference mean. With a Z-score of -0.82 (20.7th percentile), this represents normal volume . ",
  "text_data": "Age is 81.9 years. Gender is Female. Education: 17 years. MMSE: 30.0. Logical Memory: 21.0. 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 30 is also within the normal range, indicating no significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:21:39.759844"
}