{
  "ptid_time": "128_S_1043_2006-11-15",
  "img_path": "/data/qiuhui/data/adni/images/128_S_1043/2006-11-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 62,543 mm³, 108.3% above the reference mean. With a Z-score of 2.57 (99.5th percentile), this represents significant enlargement; hippocampal volume measures 6,806 mm³, 15.2% below the reference mean. With a Z-score of -1.52 (6.4th percentile), this represents moderate atrophy; whole brain volume measures 1,194,450 mm³, 5.3% above the reference mean. With a Z-score of 0.75 (77.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,227 mm³, 0.8% below the reference mean. With a Z-score of -0.06 (47.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,247 mm³, 3.3% below the reference mean. With a Z-score of -0.28 (39.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,273 mm³, 5.1% below the reference mean. With a Z-score of -0.42 (33.8th percentile), this represents normal volume . ",
  "text_data": "Age is 68.5 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Renal-Genitourinary; Major Surgical Procedures. MMSE: 25.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows significant ventricular enlargement (Z-score 2.57) and moderate hippocampal atrophy (Z-score -1.52), both of which are associated with neurodegenerative processes. The MMSE score of 25 is borderline, suggesting mild cognitive impairment, while the absence of APOE4 reduces genetic risk but does not rule out neurodegeneration.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline MMSE and lack of APOE4, but clear structural changes in key regions)",
  "timestamp": "2025-07-26T13:51:33.772611"
}