{
  "ptid_time": "073_S_0089_2011-10-05",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0089/2011-10-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,512 mm³, 41.6% below the reference mean. With a Z-score of -1.00 (16.0th percentile), this represents normal volume ; hippocampal volume measures 7,603 mm³, 0.6% above the reference mean. With a Z-score of 0.06 (52.3th percentile), this represents normal volume ; whole brain volume measures 1,076,530 mm³, 0.3% below the reference mean. With a Z-score of -0.03 (48.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,222 mm³, 3.0% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; fusiform gyrus volume measures 22,355 mm³, 18.7% above the reference mean. With a Z-score of 1.59 (94.4th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 23,385 mm³, 9.6% above the reference mean. With a Z-score of 0.86 (80.6th percentile), this represents normal volume . ",
  "text_data": "Age is 71.1 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Gastrointestinal; Smoking; Major Surgical Procedures. MMSE: 30.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampal, whole brain, entorhinal cortex, and middle temporal gyrus) are within normal ranges, with the fusiform gyrus showing moderate enlargement, which is not typically associated with Alzheimer's pathology. Cognitive scores (MMSE 30, MoCA 27) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:29:00.362036"
}