Neuroimaging clinics of North America
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Neuroimaging Clin. N. Am. · May 2022
ReviewParathyroid Computed Tomography: Pearls, Pitfalls, and Our Approach.
Parathyroid imaging is predominantly used for preoperative localization of parathyroid lesions in patients with the biochemical diagnosis of primary hyperparathyroidism. Although imaging algorithms vary, in the era of minimally invasive parathyroidectomy for single parathyroid adenomas, multiphase parathyroid computed tomography (CT) (4-dimensional CT) has emerged as a favored modality for presurgical mapping of parathyroid lesions. Implementation and correct interpretation of these studies can be challenging, although confidence and accuracy improve with experience and volume. This article reviews our approach to parathyroid imaging, focusing on pearls and pitfalls in parathyroid CT with ultrasound as a supportive and complementary modality.
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This article highlights some pearls and pitfalls encountered in neck imaging. It first covers normal anatomic structures that can be mistaken for pathology. ⋯ The article later touches on several essential anatomic distinctions. Finally, the selection of appropriate imaging modalities for certain clinical indications is discussed.
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Neuroimaging Clin. N. Am. · May 2022
ReviewNormal Anatomic Structures, Variants, and Mimics of the Temporal Bone.
Various anatomic structures and variants in the temporal bone are potential radiological mimics and surgical hazards. The imaging features of normal variants and lesions with similar imaging appearance are presented in this article. Throughout the article, salient features that can help elucidate the distinguishing features between mimics and imaging pitfalls are presented.
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Many different benign and malignant processes affect the central skull base and petrous apices. Clinical evaluation and tissue sampling are difficult because of its deep location, leaving imaging assessment the primary means for lesion evaluation. ⋯ It is important to be familiar with imaging appearances of common mimickers of malignant neoplasm in the skull base. This article familiarizes readers with imaging characteristics of various anatomic variants and benign pathologies that mimic malignant neoplasms, in hopes of increasing confidence of diagnosis, decreasing unnecessary procedures, and allaying patient fear.
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Neuroimaging Clin. N. Am. · May 2022
ReviewComputed Tomography Imaging Artifacts in the Head and Neck Region: Pitfalls and Solutions.
Computed tomography (CT) artifacts are aberrations that usually degrade the image quality of CT images, but occasionally provide insights regarding actual imaging findings. The presence of artifacts can be attributed to various sources, including patient, scanner, and postprocessing factors. ⋯ While we cannot fully eliminate the occurrence of CT artifacts, building an awareness of their cause provides reading physicians the tools to detect and read through their presence. Further, this knowledge may be applied to contribute to protocol adjustments to improve a site's overall imaging practice.