Radiation exposure in paranasal sinus imaging

Sillers, Michael J.; Kühn, Frederick A.; Vickery, Christopher L.

doi:10.1016/s0194-5998(95)70245-8

Cited by 24 publications

(9 citation statements)

References 10 publications

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“…Also, with newer multidetector CT scanners, the dose has further been lowered. This is because the newest generation of CT scanners has intrinsically better spatial and contrast resolution and more dose‐efficient detectors, thereby maintaining image quality at lower mAs (International Commission on Radiological Protection, 1990; Sillers et al, 1995; Bernhardt et al, 1998; Nishizawa et al, 1998; Bassim et al, 2005). Although imaging literature reveals no clear threshold dose above which the risk for thyroid cancer increases, the average dose of ∼4 mGy obtained per paranasal sinus study is not considered to cause any increased incidence (Zammit‐Maempel et al, 2003).…”

Section: Methodsmentioning

confidence: 99%

Imaging the Paranasal Sinuses: Where We Are and Where We Are Going

Fatterpekar

Delman

Som

2008

The Anatomical Record

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As has happened in all facets of neuroimaging, cross-sectional imaging has dramatically changed our approach and understanding of the anatomy and pathology of paranasal sinuses. We have moved away from plain film radiographs to modern high-resolution sinus computerized tomography (CT) and magnetic resonance imaging (MRI) that helps us better depict underlying normal anatomy and evaluate pathology. Recent advances in PET/CT imaging have introduced a physiologic aspect to anatomical imaging and holds promise to better stage and restage head and neck tumors. In this article, we describe the various imaging techniques, concerns, advantages and disadvantages of the individual techniques, and provide an overview of the various pathologies involving the paranasal sinuses. Anat Rec, 291:1564

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Section: Methodsmentioning

confidence: 99%

Imaging the Paranasal Sinuses: Where We Are and Where We Are Going

Fatterpekar

Delman

Som

2008

The Anatomical Record

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“…eine konventionelle Aufnahme dennoch als notwendig angesehen wird, kann der NNH-Status aus Gründen der Reduktion der Strahlenbelastung auf eine halbaxiale Aufnahme oder für die Beurteilung des Sinus sphenoidalis auf eine axiale Ebene beschränkt werden. Jede dieser Aufnahmen ist mit einer Linsendosis von 1 mSv verbunden[2].Heruntergeladen von: WEST VIRGINIA UNIVERSITY. Urheberrechtlich geschützt.…”

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State of the Art Diagnostic Imaging of Paranasal Sinus Disease

Schuknecht

Simmen²

2002

Laryngorhinootologie

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The following article describes a diagnostic concept of paranasal sinus imaging, based on more than 10 years close collaboration of the authors. CT and MR are the primary imaging modalities for investigating paranasal sinus lesions. Conventional X-ray images add little information due to insufficient sensitivity. Angiography is restricted to those patients who require preoperative tumor embolization or emergency treatment of intractable epistaxis. After thorough medical treatment of inflammatory paranasal sinus disease, CT becomes the method of choice to clearly depict preoperative osseous anatomy and to distinguish between benign and malignant intraosseous lesions. In cases where trauma is involved, CT easily identifies anterior skull base fractures. Moreover, CT will be the first step to localize early or late CSF rhinorrhea. MR, with its ability to distinguish between different soft tissues, compliments CT. This holds particularly true for inflammatory or neoplastic disease close to the skull base, orbital apex and cavernous sinus. The signal intensity in T(1) and T(2) weighted images provides additional information with respect to cellularity and vascularization of lesions, which has important diagnostic and therapeutic implications.

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“…Also, with newer multidetector CT scanners, the dose has been lowered even further. This is because the newest generation of CT scanners has intrinsically better spatial and contrast resolution and more doseefficient detectors, thereby maintaining image quality at lower mAs [32][33][34][35][36] . In children, however, where a linear dose-response relationship is speculated, it is recommended that scans be obtained at a lower mAs setting.…”

Section: Ct and Mrimentioning

confidence: 99%

A Clinical and Radiological Approach to the Management of Benign Mesenchymal Sinonasal Tumors

Anschuetz

Buchwalder²,

Dettmer³

et al. 2017

ORL

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Keywords Sinonasal mass · Benign mesenchymal sinonasal neoplasms · Osteoma · Fibrous dysplasia · Computed tomography · Magnetic resonance imaging AbstractPurpose: Benign mesenchymal sinonasal neoplasms (BMSN) are rare and histologically heterogeneous. Differential diagnosis, appropriate management, and outcome are still a matter of debate. The aim of this study is to provide evidence for further refinement of assessment and treatment in the future. Procedures: We retrospectively reviewed data on 93 patients with neuroradiologically verified BMSN treated at our university reference center during the past 22 years. Results: The most frequent BMSN recorded in our cohort was osteoma of the frontal sinus. Only one-third of the patients affected were symptomatic at initial presentation. The 2 other common fibro-osseous tumor entities, fibrous dysplasia and ossifying fibroma, were confirmed in 12 and 6 patients, respectively. Patients with soft tissue tumor entities such as hemangioma, glomangiopericytoma, angiofibroma, and hamartoma were all symptomatic and underwent surgical resection. Conclusion: Understanding and recognizing the spectrum of appearances of benign mesenchymal sinonasal tumors will improve patient assessment and clinical management. The pathognomonic neuroradiological signs of a particular tumor entity should be actively sought as the neuroradiological features may be the diagnostic clues. Computed tomography and magnetic resonance imaging play complementary roles in identifying the morphological details and locoregional staging of benign mesenchymal sinonasal tumors.

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Radiation exposure in paranasal sinus imaging

Cited by 24 publications

References 10 publications

Imaging the Paranasal Sinuses: Where We Are and Where We Are Going

Imaging the Paranasal Sinuses: Where We Are and Where We Are Going

State of the Art Diagnostic Imaging of Paranasal Sinus Disease

A Clinical and Radiological Approach to the Management of Benign Mesenchymal Sinonasal Tumors

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