{
  "ptid_time": "116_S_4483_2013-02-13",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4483/2013-02-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,507 mm³, 12.3% above the reference mean. With a Z-score of 0.28 (61.0th percentile), this represents normal volume ; hippocampal volume measures 7,452 mm³, 4.7% above the reference mean. With a Z-score of 0.44 (66.8th percentile), this represents normal volume ; whole brain volume measures 996,321 mm³, 2.2% above the reference mean. With a Z-score of 0.28 (61.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,391 mm³, 7.7% below the reference mean. With a Z-score of -0.47 (31.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,052 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,504 mm³, 3.5% below the reference mean. With a Z-score of -0.30 (38.2th percentile), this represents normal volume . ",
  "text_data": "Age is 70.5 years. Gender is Female. Education: 15 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (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 30, MoCA 28) are also within normal limits, and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T12:12:13.670620"
}