{
  "ptid_time": "128_S_0272_2006-03-22",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0272/2006-03-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,688 mm³, 8.5% below the reference mean. With a Z-score of -0.19 (42.3th percentile), this represents normal volume ; hippocampal volume measures 7,846 mm³, 10.3% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; whole brain volume measures 1,089,890 mm³, 11.8% above the reference mean. With a Z-score of 1.49 (93.2th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,086 mm³, 11.2% above the reference mean. With a Z-score of 0.69 (75.5th percentile), this represents normal volume ; fusiform gyrus volume measures 18,922 mm³, 11.2% above the reference mean. With a Z-score of 1.02 (84.6th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,422 mm³, 27.4% above the reference mean. With a Z-score of 2.38 (99.1th percentile), this represents significant enlargement. ",
  "text_data": "Age is 70.4 years. Gender is Female. Education: 19 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal to above-average ranges, with no atrophy observed. The MMSE score of 30/30 indicates no cognitive impairment, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:43:37.635799"
}