{
  "ptid_time": "002_S_1280_2012-03-01",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1280/2012-03-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,412 mm³, 13.0% below the reference mean. With a Z-score of -0.30 (38.3th percentile), this represents normal volume ; whole brain volume measures 953,922 mm³, 2.1% below the reference mean. With a Z-score of -0.27 (39.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,419 mm³, 6.9% below the reference mean. With a Z-score of -0.42 (33.6th percentile), this represents normal volume ; fusiform gyrus volume measures 15,008 mm³, 11.8% below the reference mean. With a Z-score of -1.07 (14.2th percentile), this represents mild atrophy; middle temporal gyrus volume measures 17,150 mm³, 10.5% below the reference mean. With a Z-score of -0.91 (18.0th percentile), this represents normal volume . ",
  "text_data": "Age is 75.7 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Dermatologic-Connective Tissue; Smoking; Malignancy; Major Surgical Procedures. MMSE: 30.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus. Cognitive scores (MMSE 30, MoCA 27) are within normal ranges for age, and there is no significant clinical impairment reported. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild fusiform gyrus atrophy, but strong cognitive performance)",
  "timestamp": "2025-07-25T20:16:58.750762"
}