{
  "ptid_time": "067_S_5159_2015-05-29",
  "img_path": "/data/qiuhui/data/adni/images/067_S_5159/2015-05-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,371 mm³, 22.2% below the reference mean. With a Z-score of -0.56 (28.9th percentile), this represents normal volume ; hippocampal volume measures 7,523 mm³, 2.1% below the reference mean. With a Z-score of -0.24 (40.7th percentile), this represents normal volume ; whole brain volume measures 1,067,210 mm³, 3.7% above the reference mean. With a Z-score of 0.46 (67.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,936 mm³, 1.1% above the reference mean. With a Z-score of 0.09 (53.4th percentile), this represents normal volume ; fusiform gyrus volume measures 18,112 mm³, 0.5% below the reference mean. With a Z-score of -0.06 (47.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,289 mm³, 6.0% below the reference mean. With a Z-score of -0.53 (29.7th percentile), this represents normal volume . ",
  "text_data": "Age is 68.4 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 22.0. 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 assessments (MMSE and MoCA) are both at the maximum score of 30, indicating no cognitive impairment. The presence of one APOE4 allele does not override the absence of structural or functional deficits.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:42:30.606634"
}