{
  "ptid_time": "109_S_4455_2013-03-27",
  "img_path": "/data/qiuhui/data/adni/images/109_S_4455/2013-03-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,444 mm³, 11.9% below the reference mean. With a Z-score of -0.28 (38.8th percentile), this represents normal volume ; hippocampal volume measures 8,089 mm³, 0.8% above the reference mean. With a Z-score of 0.08 (53.1th percentile), this represents normal volume ; whole brain volume measures 1,133,860 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,284 mm³, 0.5% above the reference mean. With a Z-score of 0.03 (51.4th percentile), this represents normal volume ; fusiform gyrus volume measures 20,934 mm³, 5.1% above the reference mean. With a Z-score of 0.43 (66.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,188 mm³, 1.0% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume . ",
  "text_data": "Age is 65.2 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "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. Cognitive screening scores (MMSE 30, MoCA 25) are also normal, with no indication of significant impairment. The absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:33:46.902898"
}