{
  "ptid_time": "002_S_1018_2006-12-18",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1018/2006-12-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,854 mm³, 25.7% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; hippocampal volume measures 7,142 mm³, 0.4% above the reference mean. With a Z-score of 0.04 (51.4th percentile), this represents normal volume ; whole brain volume measures 1,019,460 mm³, 4.6% above the reference mean. With a Z-score of 0.58 (71.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,614 mm³, 1.6% below the reference mean. With a Z-score of -0.10 (46.1th percentile), this represents normal volume ; fusiform gyrus volume measures 16,428 mm³, 3.4% below the reference mean. With a Z-score of -0.31 (37.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,975 mm³, 6.2% below the reference mean. With a Z-score of -0.54 (29.4th percentile), this represents normal volume . ",
  "text_data": "Age is 70.7 years. Gender is Female. Education: 13 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Endocrine-Metabolic; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 26.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "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 26 is within the normal range (24-30), and the absence of APOE4 alleles reduces genetic risk for Alzheimer's.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-25T20:09:00.121174"
}