{
  "ptid_time": "011_S_0021_2012-10-04",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0021/2012-10-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,393 mm³, 27.3% below the reference mean. With a Z-score of -0.63 (26.6th percentile), this represents normal volume ; hippocampal volume measures 7,824 mm³, 10.0% above the reference mean. With a Z-score of 0.91 (82.0th percentile), this represents normal volume ; whole brain volume measures 930,385 mm³, 4.5% below the reference mean. With a Z-score of -0.57 (28.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,151 mm³, 14.2% below the reference mean. With a Z-score of -0.87 (19.2th percentile), this represents normal volume ; fusiform gyrus volume measures 18,069 mm³, 6.2% above the reference mean. With a Z-score of 0.56 (71.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,335 mm³, 9.6% below the reference mean. With a Z-score of -0.83 (20.3th percentile), this represents normal volume . ",
  "text_data": "Age is 79.6 years. Gender is Female. Education: 18 years. MMSE: 28.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.99 SUVR (normal ). ",
  "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 scores (MMSE and MoCA) are intact (28/30), and amyloid PET (AV45) is normal. No APOE4 risk alleles are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:40:16.536213"
}