{
  "ptid_time": "109_S_2200_2010-11-22",
  "img_path": "/data/qiuhui/data/adni/images/109_S_2200/2010-11-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,084 mm³, 42.7% below the reference mean. With a Z-score of -0.98 (16.4th percentile), this represents normal volume ; hippocampal volume measures 7,320 mm³, 2.9% above the reference mean. With a Z-score of 0.26 (60.4th percentile), this represents normal volume ; whole brain volume measures 1,012,070 mm³, 3.8% above the reference mean. With a Z-score of 0.48 (68.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,958 mm³, 7.8% above the reference mean. With a Z-score of 0.48 (68.3th percentile), this represents normal volume ; fusiform gyrus volume measures 17,087 mm³, 0.4% above the reference mean. With a Z-score of 0.04 (51.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,092 mm³, 0.4% below the reference mean. With a Z-score of -0.04 (48.6th percentile), this represents normal volume . ",
  "text_data": "Age is 76.0 years. Gender is Female. Education: 14 years. Handedness: Right. Race: Black or African American. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Malignancy; Major Surgical Procedures. MMSE: 26.0. MoCA: 27.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.94 SUVR (mild reduced); Amyloid beta: 1257.00 pg/mL (normal ); Total tau: 151.60 pg/mL (mild reduced); Phosphorylated tau: 13.35 pg/mL (mild reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 26, MoCA 27) are also normal for age, and biomarker data (Aβ normal, tau mildly reduced) do not suggest Alzheimer's pathology.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:31:47.587158"
}