{
  "ptid_time": "007_S_6120_2018-12-04",
  "img_path": "/data/qiuhui/data/adni/images/007_S_6120/2018-12-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,875 mm³, 27.1% below the reference mean. With a Z-score of -0.65 (25.9th percentile), this represents normal volume ; hippocampal volume measures 7,565 mm³, 5.8% below the reference mean. With a Z-score of -0.58 (28.3th percentile), this represents normal volume ; whole brain volume measures 1,095,000 mm³, 3.5% below the reference mean. With a Z-score of -0.49 (31.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,269 mm³, 0.1% above the reference mean. With a Z-score of 0.01 (50.4th percentile), this represents normal volume ; fusiform gyrus volume measures 18,656 mm³, 6.3% below the reference mean. With a Z-score of -0.52 (30.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,913 mm³, 2.2% above the reference mean. With a Z-score of 0.18 (57.3th percentile), this represents normal volume . ",
  "text_data": "Age is 68.8 years. Gender is Male. Education: 15 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "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 testing (MMSE 29, MoCA 25) is within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T22:07:59.030267"
}