{
  "ptid_time": "018_S_4399_2013-01-11",
  "img_path": "/data/qiuhui/data/adni/images/018_S_4399/2013-01-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,087 mm³, 24.9% below the reference mean. With a Z-score of -0.57 (28.4th percentile), this represents normal volume ; hippocampal volume measures 7,314 mm³, 2.8% above the reference mean. With a Z-score of 0.26 (60.1th percentile), this represents normal volume ; whole brain volume measures 960,484 mm³, 1.5% below the reference mean. With a Z-score of -0.18 (42.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,348 mm³, 8.8% below the reference mean. With a Z-score of -0.54 (29.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,282 mm³, 4.3% below the reference mean. With a Z-score of -0.39 (34.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,732 mm³, 8.2% above the reference mean. With a Z-score of 0.71 (76.0th percentile), this represents normal volume . ",
  "text_data": "Age is 78.9 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 17.0. 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. Cognitive scores (MMSE: 29, MoCA: 28) are also within normal limits for age, indicating no significant cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T00:57:57.257277"
}