{
  "ptid_time": "031_S_2022_2013-07-25",
  "img_path": "/data/qiuhui/data/adni/images/031_S_2022/2013-07-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,004 mm³, 30.0% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; hippocampal volume measures 8,794 mm³, 9.6% above the reference mean. With a Z-score of 0.95 (83.0th percentile), this represents normal volume ; whole brain volume measures 1,147,820 mm³, 1.2% above the reference mean. With a Z-score of 0.17 (56.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,676 mm³, 9.7% above the reference mean. With a Z-score of 0.67 (74.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,154 mm³, 3.8% below the reference mean. With a Z-score of -0.32 (37.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,017 mm³, 2.7% above the reference mean. With a Z-score of 0.22 (58.8th percentile), this represents normal volume . ",
  "text_data": "Age is 69.0 years. Gender is Male. Education: 18 years. MMSE: 29.0. MoCA: 29.0. Logical Memory: 14.0. 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) are within normal ranges based on Z-scores and percentiles. Cognitive screening scores (MMSE and MoCA) are also in the normal range (29/30), indicating no significant cognitive impairment. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T04:42:36.693135"
}