{
  "ptid_time": "003_S_4872_2012-08-02",
  "img_path": "/data/qiuhui/data/adni/images/003_S_4872/2012-08-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,359 mm³, 4.6% above the reference mean. With a Z-score of 0.11 (54.6th percentile), this represents normal volume ; hippocampal volume measures 8,277 mm³, 7.7% above the reference mean. With a Z-score of 0.87 (80.7th percentile), this represents normal volume ; whole brain volume measures 1,067,730 mm³, 3.7% above the reference mean. With a Z-score of 0.47 (68.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,652 mm³, 6.2% below the reference mean. With a Z-score of -0.48 (31.6th percentile), this represents normal volume ; fusiform gyrus volume measures 20,320 mm³, 11.6% above the reference mean. With a Z-score of 1.30 (90.4th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,618 mm³, 4.4% below the reference mean. With a Z-score of -0.39 (34.8th percentile), this represents normal volume . ",
  "text_data": "Age is 68.5 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Musculoskeletal; Endocrine-Metabolic; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 26.0. MoCA: 30.0. Logical Memory: 9.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.05 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., slightly reduced entorhinal cortex volume and mildly enlarged fusiform gyrus). Cognitive scores (MMSE 26, MoCA 30) are normal, and amyloid PET (AV45) is negative, suggesting no significant Alzheimer's pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:55:46.788418"
}