{
  "ptid_time": "135_S_4722_2018-07-06",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4722/2018-07-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,589 mm³, 19.7% above the reference mean. With a Z-score of 0.45 (67.4th percentile), this represents normal volume ; hippocampal volume measures 7,797 mm³, 9.6% above the reference mean. With a Z-score of 0.88 (81.1th percentile), this represents normal volume ; whole brain volume measures 987,446 mm³, 1.3% above the reference mean. With a Z-score of 0.17 (56.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,679 mm³, 0.2% above the reference mean. With a Z-score of 0.01 (50.4th percentile), this represents normal volume ; fusiform gyrus volume measures 15,899 mm³, 6.5% below the reference mean. With a Z-score of -0.60 (27.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,938 mm³, 9.2% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume . ",
  "text_data": "Age is 74.0 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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 assessments (MMSE and MoCA) are both at maximum scores (30/30), indicating no cognitive impairment. The absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:42:50.847046"
}