{
  "ptid_time": "073_S_5023_2013-12-05",
  "img_path": "/data/qiuhui/data/adni/images/073_S_5023/2013-12-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,954 mm³, 6.2% below the reference mean. With a Z-score of -0.15 (43.8th percentile), this represents normal volume ; hippocampal volume measures 8,039 mm³, 4.6% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; whole brain volume measures 1,056,510 mm³, 2.7% above the reference mean. With a Z-score of 0.33 (63.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,899 mm³, 0.2% above the reference mean. With a Z-score of 0.01 (50.5th percentile), this represents normal volume ; fusiform gyrus volume measures 17,990 mm³, 1.2% below the reference mean. With a Z-score of -0.14 (44.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,840 mm³, 6.4% above the reference mean. With a Z-score of 0.57 (71.6th percentile), this represents normal volume . ",
  "text_data": "Age is 64.9 years. Gender is Female. Education: 18 years. MMSE: 29.0. MoCA: 30.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores close to zero and percentiles near the 50th. Cognitive screening scores (MMSE 29, MoCA 30) are intact, and there is no APOE4 genetic risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:54:28.183274"
}