{
  "ptid_time": "002_S_0685_2011-07-08",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0685/2011-07-08/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,078 mm³, 0.6% above the reference mean. With a Z-score of 0.31 (62.3th percentile), this represents normal volume ; whole brain volume measures 974,777 mm³, 7.1% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,563 mm³, 6.0% below the reference mean. With a Z-score of -0.56 (28.9th percentile), this represents normal volume ; fusiform gyrus volume measures 14,770 mm³, 0.8% above the reference mean. With a Z-score of 0.11 (54.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,267 mm³, 1.2% above the reference mean. With a Z-score of 0.61 (72.9th percentile), this represents normal volume . ",
  "text_data": "Age is 94.6 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Gastrointestinal. MMSE: 30.0. MoCA: 25.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus volumes are all within normal ranges (Z-scores close to 0 or slightly above/below). Cognitive screening (MMSE 30, MoCA 25) shows no significant impairment, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:04:11.891674"
}