{
  "ptid_time": "123_S_2363_2011-04-22",
  "img_path": "/data/qiuhui/data/adni/images/123_S_2363/2011-04-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 7,589 mm³, 69.7% below the reference mean. With a Z-score of -0.92 (17.8th percentile), this represents normal volume ; hippocampal volume measures 9,822 mm³.; whole brain volume measures 1,308,350 mm³, 9.8% above the reference mean. With a Z-score of 1.81 (96.4th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,358 mm³, 8.9% above the reference mean. With a Z-score of 0.78 (78.1th percentile), this represents normal volume ; fusiform gyrus volume measures 21,308 mm³, 2.2% above the reference mean. With a Z-score of 0.34 (63.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,155 mm³.. ",
  "text_data": "Age is 58.8 years. Gender is Male. Education: 13 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Gastrointestinal; Smoking; Major Surgical Procedures. MMSE: 28.0. MoCA: 25.0. Logical Memory: 5.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.95 SUVR (mild reduced); Total tau: 281.20 pg/mL (normal ); Phosphorylated tau: 25.74 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes are largely within normal ranges or even slightly enlarged, with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 28, MoCA 25) are within normal limits, and biomarkers (T-tau, P-tau, AV45) do not strongly suggest Alzheimer's pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T12:30:25.897352"
}