{
  "ptid_time": "009_S_4543_2014-04-02",
  "img_path": "/data/qiuhui/data/adni/images/009_S_4543/2014-04-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,932 mm³, 25.4% below the reference mean. With a Z-score of -0.58 (28.0th percentile), this represents normal volume ; hippocampal volume measures 7,163 mm³, 0.7% above the reference mean. With a Z-score of 0.06 (52.5th percentile), this represents normal volume ; whole brain volume measures 1,048,230 mm³, 7.5% above the reference mean. With a Z-score of 0.95 (82.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,401 mm³, 19.8% above the reference mean. With a Z-score of 1.22 (88.8th percentile), this represents mild enlargement; fusiform gyrus volume measures 19,919 mm³, 17.1% above the reference mean. With a Z-score of 1.55 (94.0th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 22,605 mm³, 17.9% above the reference mean. With a Z-score of 1.56 (94.0th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 72.1 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.02 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) all fall within normal or above-average ranges, with no significant atrophy. Cognitive testing (MMSE 30, MoCA 27) is within normal limits, and amyloid PET (AV45) is normal. No APOE4 risk alleles are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:21:47.598457"
}