The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves
Introduction: Bicuspid aortic valve is difficult to detect on standard transverse images. Purpose: We aimed to investigate the usefulness of the hammock sign for detection of bicuspid aortic valve. Methods: We retrospectively investigated the usefulness of a newly proposed ‘hammock sign’ in a popula...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ubiquity Press
2023-01-01
|
| Series: | Journal of the Belgian Society of Radiology |
| Subjects: | |
| Online Access: | https://www.jbsr.be/articles/2974 |
| _version_ | 1811173011951190016 |
|---|---|
| author | Daniel Devos Charlotte Van Langenhove Laurence Campens |
| author_facet | Daniel Devos Charlotte Van Langenhove Laurence Campens |
| author_sort | Daniel Devos |
| collection | DOAJ |
| description | Introduction: Bicuspid aortic valve is difficult to detect on standard transverse images. Purpose: We aimed to investigate the usefulness of the hammock sign for detection of bicuspid aortic valve. Methods: We retrospectively investigated the usefulness of a newly proposed ‘hammock sign’ in a population of 45 contrast enhanced computer tomographic studies to discern tricuspid (22) from anatomical bicuspid aortic (23) valves. The gold standard of aortic morphology was the definite diagnosis in the patient’s medical file, established by computed tomography, magnetic resonance, or surgery. Results: Computer tomographic (CT) studies of each aortic morphology were randomly evaluated for the presence of the hammock sign on coronal and sagittal images, by two readers blinded to the diagnosis. Sensitivity for detecting an anatomic bicuspid valve was 86%, and specificity was 100%. Conclusion: The hammock sign allows for a quick and easy diagnosis of an anatomical bicuspid aortic valve, merely by scrolling through the standard coronal reconstructions of any type of contrast-enhanced thoracic CT study, and regardless of any other findings associated with bicuspid aortic valve. Functional bicuspid aortic valves were not the scope of this study. |
| first_indexed | 2024-04-10T17:40:57Z |
| format | Article |
| id | doaj.art-4a67a4dae3ec4853953557096e440d93 |
| institution | Directory Open Access Journal |
| issn | 2514-8281 |
| language | English |
| last_indexed | 2024-04-10T17:40:57Z |
| publishDate | 2023-01-01 |
| publisher | Ubiquity Press |
| record_format | Article |
| series | Journal of the Belgian Society of Radiology |
| spelling | doaj.art-4a67a4dae3ec4853953557096e440d932023-02-03T14:07:43ZengUbiquity PressJournal of the Belgian Society of Radiology2514-82812023-01-01107110.5334/jbsr.29741582The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic ValvesDaniel Devos0Charlotte Van Langenhove1Laurence Campens2Ghent University HospitalGhent University HospitalGhent University HospitalIntroduction: Bicuspid aortic valve is difficult to detect on standard transverse images. Purpose: We aimed to investigate the usefulness of the hammock sign for detection of bicuspid aortic valve. Methods: We retrospectively investigated the usefulness of a newly proposed ‘hammock sign’ in a population of 45 contrast enhanced computer tomographic studies to discern tricuspid (22) from anatomical bicuspid aortic (23) valves. The gold standard of aortic morphology was the definite diagnosis in the patient’s medical file, established by computed tomography, magnetic resonance, or surgery. Results: Computer tomographic (CT) studies of each aortic morphology were randomly evaluated for the presence of the hammock sign on coronal and sagittal images, by two readers blinded to the diagnosis. Sensitivity for detecting an anatomic bicuspid valve was 86%, and specificity was 100%. Conclusion: The hammock sign allows for a quick and easy diagnosis of an anatomical bicuspid aortic valve, merely by scrolling through the standard coronal reconstructions of any type of contrast-enhanced thoracic CT study, and regardless of any other findings associated with bicuspid aortic valve. Functional bicuspid aortic valves were not the scope of this study.https://www.jbsr.be/articles/2974aortic valvebicuspid aortic valvecomputed tomographycomputed tomographic angiography |
| spellingShingle | Daniel Devos Charlotte Van Langenhove Laurence Campens The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves Journal of the Belgian Society of Radiology aortic valve bicuspid aortic valve computed tomography computed tomographic angiography |
| title | The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves |
| title_full | The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves |
| title_fullStr | The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves |
| title_full_unstemmed | The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves |
| title_short | The Hammock Sign in Computed Tomography as a Detection Aid for Bicuspid Aortic Valves |
| title_sort | hammock sign in computed tomography as a detection aid for bicuspid aortic valves |
| topic | aortic valve bicuspid aortic valve computed tomography computed tomographic angiography |
| url | https://www.jbsr.be/articles/2974 |
| work_keys_str_mv | AT danieldevos thehammocksignincomputedtomographyasadetectionaidforbicuspidaorticvalves AT charlottevanlangenhove thehammocksignincomputedtomographyasadetectionaidforbicuspidaorticvalves AT laurencecampens thehammocksignincomputedtomographyasadetectionaidforbicuspidaorticvalves AT danieldevos hammocksignincomputedtomographyasadetectionaidforbicuspidaorticvalves AT charlottevanlangenhove hammocksignincomputedtomographyasadetectionaidforbicuspidaorticvalves AT laurencecampens hammocksignincomputedtomographyasadetectionaidforbicuspidaorticvalves |