{
  "ptid_time": "011_S_0023_2010-12-22",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0023/2010-12-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,003 mm³, 27.3% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume ; hippocampal volume measures 7,993 mm³, 5.7% above the reference mean. With a Z-score of 0.56 (71.2th percentile), this represents normal volume ; whole brain volume measures 1,042,520 mm³, 3.4% below the reference mean. With a Z-score of -0.44 (32.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,969 mm³, 3.2% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume ; fusiform gyrus volume measures 19,610 mm³, 4.1% above the reference mean. With a Z-score of 0.35 (63.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,399 mm³, 4.4% below the reference mean. With a Z-score of -0.40 (34.6th percentile), this represents normal volume . ",
  "text_data": "Age is 76.7 years. Gender is Male. Education: 14 years. Handedness: Right. Race: Black or African American. Medical history: Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Hematopoietic-Lymphatic; Smoking; Major Surgical Procedures. MMSE: 26.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.13 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE: 26, MoCA: 27) are within normal limits for age, and amyloid PET (AV45) is normal. No APOE4 risk alleles are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:42:24.707774"
}