{
  "ptid_time": "021_S_0276_2011-04-25",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0276/2011-04-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,610 mm³, 20.5% below the reference mean. With a Z-score of -0.49 (31.1th percentile), this represents normal volume ; hippocampal volume measures 8,216 mm³, 8.7% above the reference mean. With a Z-score of 0.85 (80.2th percentile), this represents normal volume ; whole brain volume measures 1,121,150 mm³, 3.9% above the reference mean. With a Z-score of 0.50 (69.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,011 mm³, 2.2% below the reference mean. With a Z-score of -0.15 (44.1th percentile), this represents normal volume ; fusiform gyrus volume measures 19,640 mm³, 4.3% above the reference mean. With a Z-score of 0.36 (64.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,308 mm³, 18.6% above the reference mean. With a Z-score of 1.67 (95.3th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 75.9 years. Gender is Male. Education: 18 years. Handedness: Left. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Renal-Genitourinary; Major Surgical Procedures. MMSE: 29.0. MoCA: 25.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges, with the middle temporal gyrus showing moderate enlargement. Cognitive scores (MMSE 29, MoCA 25) are within normal limits for age, and the absence of APOE4 reduces genetic risk. No significant atrophy or cognitive impairment is evident.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T01:25:13.830641"
}