{
  "ptid_time": "057_S_0934_2013-10-22",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0934/2013-10-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,917 mm³, 10.2% above the reference mean. With a Z-score of 0.23 (59.2th percentile), this represents normal volume ; hippocampal volume measures 6,496 mm³, 8.7% below the reference mean. With a Z-score of -0.80 (21.3th percentile), this represents normal volume ; whole brain volume measures 903,861 mm³, 7.3% below the reference mean. With a Z-score of -0.91 (18.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,169 mm³, 13.7% below the reference mean. With a Z-score of -0.84 (20.0th percentile), this represents normal volume ; fusiform gyrus volume measures 18,319 mm³, 7.7% above the reference mean. With a Z-score of 0.70 (75.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,829 mm³, 7.0% below the reference mean. With a Z-score of -0.61 (27.2th percentile), this represents normal volume . ",
  "text_data": "Age is 77.0 years. Gender is Female. Education: 10 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements, including hippocampal and entorhinal cortex volumes, are within normal ranges despite being slightly below the reference mean (Z-scores between -0.91 and 0.70). Cognitive scores (MMSE 30, MoCA 26) are normal for age, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:06:48.776843"
}