{
  "ptid_time": "022_S_0130_2011-04-27",
  "img_path": "/data/qiuhui/data/adni/images/022_S_0130/2011-04-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,526 mm³, 31.1% below the reference mean. With a Z-score of -0.75 (22.8th percentile), this represents normal volume ; hippocampal volume measures 7,923 mm³, 4.8% above the reference mean. With a Z-score of 0.47 (68.1th percentile), this represents normal volume ; whole brain volume measures 1,198,250 mm³, 11.0% above the reference mean. With a Z-score of 1.43 (92.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,027 mm³, 1.8% below the reference mean. With a Z-score of -0.12 (45.2th percentile), this represents normal volume ; fusiform gyrus volume measures 21,754 mm³, 15.5% above the reference mean. With a Z-score of 1.32 (90.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,632 mm³, 15.4% above the reference mean. With a Z-score of 1.39 (91.7th percentile), this represents mild enlargement. ",
  "text_data": "Age is 78.1 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Hepatic; Musculoskeletal; Gastrointestinal; Allergies or Drug Sensitivities; Smoking; Major Surgical Procedures. MMSE: 28.0. MoCA: 29.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.30 SUVR (moderate elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges or mildly enlarged, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 28, MoCA 29) are well within the normal range, and there is no genetic (APOE4-negative) or amyloid (AV45 moderate elevated) evidence strongly supporting Alzheimer's pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T02:04:28.186307"
}