{
  "ptid_time": "116_S_0382_2006-05-15",
  "img_path": "/data/qiuhui/data/adni/images/116_S_0382/2006-05-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,012 mm³, 7.3% below the reference mean. With a Z-score of -0.17 (43.3th percentile), this represents normal volume ; hippocampal volume measures 7,376 mm³, 3.7% above the reference mean. With a Z-score of 0.34 (63.2th percentile), this represents normal volume ; whole brain volume measures 974,241 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 3,257 mm³, 11.3% below the reference mean. With a Z-score of -0.70 (24.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,883 mm³, 5.1% above the reference mean. With a Z-score of 0.47 (67.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,568 mm³, 2.1% above the reference mean. With a Z-score of 0.18 (57.2th percentile), this represents normal volume . ",
  "text_data": "Age is 75.5 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Dermatologic-Connective Tissue; Musculoskeletal; Smoking; Malignancy; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges based on Z-scores and percentiles. The MMSE score of 29 is within the normal range, and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:52:50.263038"
}