{
  "ptid_time": "130_S_4417_2012-01-18",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4417/2012-01-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 51,371 mm³, 33.4% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; hippocampal volume measures 8,000 mm³, 5.8% above the reference mean. With a Z-score of 0.57 (71.5th percentile), this represents normal volume ; whole brain volume measures 1,132,490 mm³, 4.9% above the reference mean. With a Z-score of 0.64 (73.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,111 mm³, 0.3% above the reference mean. With a Z-score of 0.02 (50.7th percentile), this represents normal volume ; fusiform gyrus volume measures 21,237 mm³, 12.7% above the reference mean. With a Z-score of 1.08 (86.1th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,095 mm³, 8.2% above the reference mean. With a Z-score of 0.74 (77.0th percentile), this represents normal volume . ",
  "text_data": "Age is 74.4 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 30.0. MoCA: 25.0. Logical Memory: 10.0. Laboratory findings: Hematocrit: 62.00 (profound elevated); RBC: 6.90 (profound elevated); Hemoglobin: 21.70 (profound elevated); Neutrophils: 6.28 (significant elevated); Total Bilirubin: 1.70 (profound elevated); Direct Bilirubin: 0.30 (significant elevated); GGT: 48.00 (profound elevated); ALT (SGPT): 39.00 (significant elevated); AST (SGOT): 34.00 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.07 SUVR (normal ); Amyloid beta: 801.20 pg/mL (normal ); Total tau: 217.40 pg/mL (normal ); Phosphorylated tau: 19.60 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges or mildly enlarged, with no significant atrophy. Cognitive screening (MMSE 30, MoCA 25) shows no major deficits, and biomarkers (Aβ, tau, AV45) are normal. APOE4-negative status further reduces Alzheimer's risk.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T14:44:19.073976"
}