World Neurosurg
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Internal carotid artery (ICA) stenosis rarely occurs in pituitary apoplexy. Little is known of the causes of this condition. The present study investigated the factors related to ICA stenosis associated with pituitary apoplexy. ⋯ Our study revealed that age, tumor size, and sphenoid sinus mucosal thickening were strongly related to the occurrence of ICA stenosis in pituitary apoplexy. Among these factors, age had the potential of being an independent predictor of the condition.
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Comparative Study
Biologic Agents Preserve the C-2 Pedicle in Patients with Rheumatoid Arthritis: A Comparative Imaging Study Using Three-Dimensional Computed Tomography.
To investigate whether biologic agents (BAs) reduce a narrow C-2 pedicle screw trajectory, which is often a key stabilizer in surgical treatment, in patients with rheumatoid arthritis (RA). ⋯ This study suggests that BAs can maintain the trajectory for C-2 pedicle screws, which acts as a key stabilizer in surgical management for the rheumatoid cervical spine, by halting the destruction of the atlantoaxial joint. Early introduction of BAs can be especially important to prevent the narrowing of the C-2 pedicle.
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The pathogenesis and clinical characteristics of sciatica caused by pregnancy were summarized to reduce the incidence of misdiagnoses and missed diagnoses. The sciatic nerve, tibial nerve, common peroneal nerve, sural nerve, superficial peroneal nerve, saphenous nerve, and lateral femoral cutaneous nerve were examined using ultrasonography for 7 imaging features, including the shape and internal structure of the peripheral nerves of the lower extremities. ⋯ We found no significant differences in the peripheral nerve cross-sectional area between the left and right legs but did find a positive correlation with body mass index and age.
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Gastric stromal tumor is a potentially malignant mesenchymal tumor that is difficult to diagnose before surgery. Computed tomography is the most commonly used tool for diagnosing gastrointestinal stromal tumor. This study combined peripheral nerve analysis and computed tomography for diagnosis and prognosis of gastrointestinal stromal tumor. This study shows that computed tomography can accurately show the location, shape, and size of gastric scrotal tumors and has important clinical value in identifying benign and malignant tumors as well as early clinical judgment and treatment and prognosis.
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It is difficult to predict which patients with idiopathic normal pressure hydrocephalus (iNPH) will improve after shunt surgery. This study investigated the association between preoperative imaging parameters in patients with iNPH and long-term outcome after shunt placement. ⋯ Higher Evans index is a predictor of long-term cognitive improvement after shunt placement; however, no cutoff value demonstrates sufficient accuracy for the selection of shunt candidates. None of the evaluated imaging features was predictive of long-term gait or urinary improvement. The utility of imaging to predict a response to shunting is limited, and no imaging feature alone can be used to exclude patients from shunt surgery.