{
  "ptid_time": "128_S_0545_2010-09-13",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0545/2010-09-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,484 mm³, 15.7% below the reference mean. With a Z-score of -0.38 (35.4th percentile), this represents normal volume ; hippocampal volume measures 7,685 mm³, 1.7% above the reference mean. With a Z-score of 0.16 (56.5th percentile), this represents normal volume ; whole brain volume measures 1,134,180 mm³, 5.1% above the reference mean. With a Z-score of 0.66 (74.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,758 mm³, 8.4% below the reference mean. With a Z-score of -0.57 (28.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,967 mm³, 11.3% above the reference mean. With a Z-score of 0.96 (83.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,468 mm³, 18.1% below the reference mean. With a Z-score of -1.63 (5.1th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 75.8 years. Gender is Male. Education: 19 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic. MMSE: 30.0. MoCA: 27.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.27 SUVR (mild elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal measurements for most regions, except for moderate atrophy in the middle temporal gyrus. Cognitive scores (MMSE 30, MoCA 27) are within normal ranges, and there is no significant genetic (APOE4-negative) or amyloid (mildly elevated AV45) risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild amyloid elevation and isolated temporal atrophy, but strong cognitive performance suggests no impairment)",
  "timestamp": "2025-07-26T13:47:08.042916"
}