{
  "ptid_time": "002_S_1280_2007-02-27",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1280/2007-02-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,627 mm³, 26.5% below the reference mean. With a Z-score of -0.61 (27.2th percentile), this represents normal volume ; hippocampal volume measures 6,708 mm³, 5.7% below the reference mean. With a Z-score of -0.52 (30.0th percentile), this represents normal volume ; whole brain volume measures 974,216 mm³, 0.0% below the reference mean. With a Z-score of -0.01 (49.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,706 mm³, 0.9% above the reference mean. With a Z-score of 0.06 (52.2th percentile), this represents normal volume ; fusiform gyrus volume measures 16,768 mm³, 1.4% below the reference mean. With a Z-score of -0.13 (44.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,715 mm³, 7.6% below the reference mean. With a Z-score of -0.66 (25.5th percentile), this represents normal volume . ",
  "text_data": "Age is 70.7 years. Gender is Female. Education: 14 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Dermatologic-Connective Tissue; Gastrointestinal; Smoking; Malignancy; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 17.0. APOEε4 alleles: 1.0. ",
  "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. The MMSE score of 30 is also indicative of normal cognitive function. The presence of one APOE4 allele increases Alzheimer's risk but does not alone indicate impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-25T20:16:11.526076"
}