Dedicated Cone-beam Breast Computed Tomography and Diagnostic Mammography: Comparison of Radiation Dose, Patient Comfort, And Qualitative Review of Imaging Findings in BI-RADS 4 and 5 Lesions

Objective: This pilot study was undertaken to compare radiation dose, relative visibility/conspicuity of biopsy-proven lesions, and relative patient comfort in diagnostic mammography and dedicated cone-beam breast computed tomography (CBBCT) in Breast Imaging-Reporting and Data System (BI-RADS)® 4 or 5 lesions. Materials and Methods: Thirty-six consecutive patients (37 breasts) with abnormal mammographic and/or ultrasound categorized as BI-RADS® 4 or 5 lesions were evaluated with CBBCT prior to biopsy. Administered radiation dose was calculated for each modality. Mammograms and CBBCT images were compared side-by-side and lesion visibility/conspicuity was qualitatively scored. Histopathology of lesions was reviewed. Patients were administered a survey for qualitative evaluation of comfort between the two modalities. Results: CBBCT dose was similar to or less than diagnostic mammography, with a mean dose of 9.4 mGy (±3.1 SD) for CBBCT vs. 16.9 mGy (±6.9 SD) for diagnostic mammography in a total of 37 imaged breasts (P<0.001). Thirty-three of 34 mammographic lesions were scored as equally or better visualized in CBBCT relative to diagnostic mammography. Characterization of high-risk lesions was excellent. Patients reported greater comfort in CBBCT imaging relative to mammography. Conclusion: Our experience of side-by-side comparison of CBBCT and diagnostic mammography in BI-RADS® 4 and 5 breast lesions demonstrated a high degree of correlation between the two modalities across a variety of lesion types. Owing to favorable radiation dose profile, excellent visualization of lesions, and qualitative benefits including improved patient comfort, excellent field-of-view, and more anatomical evaluation of lesion margins, CBBCT offers a promising modality for diagnostic evaluation of breast lesions.

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Cone-Beam Breast Computed Tomography: Time for a New Paradigm in Breast Imaging

Journal of Clinical Medicine ◽

10.3390/jcm10215135 ◽

2021 ◽

Vol 10 (21) ◽

pp. 5135

Author(s):

Avice M. O'Connell ◽

Thomas J. Marini ◽

Daniel T. Kawakyu-O'Connor

Keyword(s):

Computed Tomography ◽

Breast Imaging ◽

3D Structure ◽

Contrast Material ◽

Cone Beam ◽

New Paradigm ◽

New Era ◽

Dense Breast Tissue ◽

Breast Compression ◽

Breast Computed Tomography

It is time to reconsider how we image the breast. Although the breast is a 3D structure, we have traditionally used 2D mammography to perform screening and diagnostic imaging. Mammography has been continuously modified and improved, most recently with tomosynthesis and contrast mammography, but it is still using modifications of compression 2D mammography. It is time to consider 3D imaging for this 3D structure. Cone-beam breast computed tomography (CBBCT) is a revolutionary modality that will assist in overcoming the limitations of current imaging for dense breast tissue and overlapping structures. It also allows easy administration of contrast material for functional imaging. With a radiation dose on par with diagnostic mammography, rapid 10 s acquisition, no breast compression, and true high-resolution isotropic imaging, CBBCT has the potential to usher in a new era in breast imaging. These advantages could translate into lower morbidity and mortality from breast cancer.

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Evaluation of Malignant Breast Lesions in the Diagnostic Setting with Cone Beam Breast Computed Tomography (Breast CT): Feasibility Study

The Breast Journal ◽

10.1111/tbj.12285 ◽

2014 ◽

Vol 20 (4) ◽

pp. 364-374 ◽

Cited By ~ 19

Author(s):

Posy Seifert ◽

David Conover ◽

Yan Zhang ◽

Renee Morgan ◽

Andrea Arieno ◽

...

Keyword(s):

Computed Tomography ◽

Feasibility Study ◽

Cone Beam ◽

Breast Lesions ◽

Breast Ct ◽

Malignant Breast ◽

Diagnostic Setting ◽

Breast Computed Tomography

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Cone-beam computed tomography for routine orthodontic treatment planning: A radiation dose evaluation

American Journal of Orthodontics and Dentofacial Orthopedics ◽

10.1016/j.ajodo.2007.11.019 ◽

2008 ◽

Vol 133 (5) ◽

pp. 640.e1-640.e5 ◽

Cited By ~ 177

Author(s):

Maria Alves Garcia Silva ◽

Ulrich Wolf ◽

Frank Heinicke ◽

Axel Bumann ◽

Heiko Visser ◽

...

Keyword(s):

Computed Tomography ◽

Radiation Dose ◽

Treatment Planning ◽

Cone Beam Computed Tomography ◽

Orthodontic Treatment ◽

Cone Beam ◽

Dose Evaluation

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Knowledge Level of Iranian Dental Practitioners Towards Digital Radiography And Cone-Beam Computed Tomography

Brazilian Dental Science ◽

10.14295/bds.2021.v24i2.2442 ◽

2021 ◽

Vol 24 (2) ◽

Author(s):

Fatemeh Salemi ◽

Abbas Shokri ◽

Maryam Foroozandeh ◽

Maryam Farhadian ◽

Ayoub Yeganeh

Keyword(s):

Computed Tomography ◽

Radiation Dose ◽

Digital Radiography ◽

Cone Beam Computed Tomography ◽

Work Experience ◽

Further Education ◽

Cone Beam ◽

Knowledge Level ◽

Dental Practitioners ◽

Significant Difference

Objective: This study aimed to assess the knowledge level of Iranian dental practitioners about digital radiography(DR) andcone-beamcomputedtomography (CBCT). Material and Methods: In this crosssectional study, a researcher-designed questionnaire was administered among 180 general dentists and specialists. The questionnaire had three main domains of demographic information, fifteen questions about knowledge of DR (advantages, disadvantages, physical properties) and twenty six questions about knowledge of CBCT (indications, applications, advantages, route of knowledge acquisition). Data were analyzed using descriptive statistics, t-test and Pearson’s correlation coefficient. Results: Of 180 participants, 76 (42.2%) were females. The minimum, maximum and mean± standard deviation scores obtained in DR were 4, 14, and 9.031 ± 1.85 and in CBCT were 0,26 and 18.56 ± 4.81, respectively. In the CBCT domain, the participants had maximum knowledge about “low radiation dose” (72.8%) and minimum knowledge about the “role of CBCT in determination of bone density” (45%). In DR domain, the participants had maximum knowledge about “no need for radiographic films” (75.6%) and minimum knowledge about “not requiring manual processing” (15.6%). Overall, participants had higher level of knowledge about CBCT than DR. An inverse correlation was noted between age and work experience with the number of correct answers. However, no significant difference was noted in the knowledge level of males and females regarding CBCT or DR (p = 0.233 and p = 0.227, respectively). Conclusions: further education seem imperative for dentists in this respect for more efficient diagnosis and treatment planning, minimize patient radiation dose and save time and cost. Keywords Digital radiography; Cone-Beam computed tomography; Knowledge; Dentists.

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