{
  "ptid_time": "941_S_1195_2011-03-15",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1195/2011-03-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,583 mm³, 9.4% below the reference mean. With a Z-score of -0.27 (39.2th percentile), this represents normal volume ; hippocampal volume measures 6,321 mm³, 9.3% below the reference mean. With a Z-score of -0.80 (21.1th percentile), this represents normal volume ; whole brain volume measures 1,040,790 mm³, 1.1% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,298 mm³, 8.3% above the reference mean. With a Z-score of 0.54 (70.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,524 mm³, 2.5% above the reference mean. With a Z-score of 0.22 (58.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,769 mm³, 7.0% below the reference mean. With a Z-score of -0.62 (26.7th percentile), this represents normal volume . ",
  "text_data": "Age is 80.9 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Hepatic; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Smoking. MMSE: 30.0. MoCA: 27.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.11 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (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 30, MoCA 27) is intact, and amyloid PET (AV45) is normal. No significant atrophy or biomarker evidence of Alzheimer’s pathology is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T17:26:47.539529"
}