{
  "ptid_time": "099_S_6175_2019-07-22",
  "img_path": "/data/qiuhui/data/adni/images/099_S_6175/2019-07-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,036 mm³, 39.3% below the reference mean. With a Z-score of -0.90 (18.4th percentile), this represents normal volume ; hippocampal volume measures 6,945 mm³, 2.4% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume ; whole brain volume measures 1,034,320 mm³, 6.1% above the reference mean. With a Z-score of 0.77 (78.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,246 mm³, 11.6% below the reference mean. With a Z-score of -0.71 (23.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,344 mm³, 3.9% below the reference mean. With a Z-score of -0.36 (36.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,766 mm³, 24.0% above the reference mean. With a Z-score of 2.08 (98.1th percentile), this represents significant enlargement. ",
  "text_data": "Age is 70.3 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges, with only the middle temporal gyrus showing significant enlargement, which is not typically associated with Alzheimer's pathology. Cognitive scores (MMSE 30, MoCA 29) are intact, and APOE4 status (heterozygous) alone does not indicate impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:12:29.565321"
}