Tredimensjonal ultralydundersøkelse i kardiologisk diagnostikk

Urheim, Stig; Andersen, Kai; Aakhus, Svend

doi:10.4045/tidsskr.11.0410

Cited by 3 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Increased knowledge of the geometry and function of the mitral valve apparatus may reduce the number of repair failures. In recent years, there has been enormous progress in medical imaging technologies and in particular 3D ultrasound [ 14 ]. A novel 3D holographic display has been developed and enables 3D visualization of real-time 3D ultrasound data without the need for special glasses [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Mitral valve analysis adding a virtual semi-transparent annulus plane for detection of prolapsing segments

Dumont

Karlsen

Helle-Valle

et al. 2015

Cardiovasc Ultrasound

Self Cite

View full text Add to dashboard Cite

BackgroundWe hypothesized that a novel three-dimensional virtual semi-transparent annulus plane (3D VSAP) presented on a holographic screen can be used to visualize the prolapsing tissue in degenerative mitral valve disease and furthermore, provide us with geometrical data of the mitral valve apparatus. Phantom and patient studies were designed to demonstrate the feasibility of creating a semi-automatic, semi-transparent mitral annulus plane visualized on a holographic display.MethodsTen pipe cleaners mimicking the mitral annulus with different shapes and three types of annuloplasty rings served as phantoms. We obtained 3D transoesophageal examination of the phantoms in a special designed box filled with water. Recordings were converted to the holographic display and a 3D VSAP was created. The ratio of the major and minor axes as well as the non-planar angles were calculated and compared with direct measures of the phantoms. Forty patients with degenerative mitral valve disease were then analyzed with 3D transthoracic echocardiography (TTE) and a 3D VSAP was created on the holographic display. A total of 240 segments were analyzed by two independent observers, one echo expert (observer I), and the other novice with limited echo experience (observer II). The two observers created the 3D VSAP in each patient before suggesting the valve pathology.ResultsThe major/minor axes ratio and non-planar angles by 3D VSAP correlated with direct measurements by r = 0.65, p < 0.02 and r = 0.99, p < 0.0001, respectively. The sensitivity and specificity of the 3D VSAP method in patients was 81 and 97 %, respectively (observer I) and for observer II 77 and 96 %, respectively. The accuracy and precisions were 93.9 and 89.4 %, respectively (observer I), 92.3 and 85.1 % (observer II). Mitral valve analysis adding a 3D VSAP was feasible with high accuracy and precision, providing a quick and less subjective method for diagnosing mitral valve prolapse. This novel method may improve preoperative diagnostics and may relieve a better understanding of the pathophysiology of mitral valve disease. Thus, based on the specific findings in each patient, a tailored surgical repair can be planned and hopefully enhance long-term repair patency in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Mitral valve analysis adding a virtual semi-transparent annulus plane for detection of prolapsing segments

Dumont

Karlsen

Helle-Valle

et al. 2015

Cardiovasc Ultrasound

Self Cite

View full text Add to dashboard Cite

show abstract

“…Although 3D technology has been around for over a couple of decades, recent advances in technology such as multilinear probes, volumetric dataset acquisition and offline analysis have enhanced our understanding of the heart [33]. 3D TEE has made it easier to interrogate, interpret and understand complex structures such as the mitral valve and right ventricle.…”

Section: -Dimensional Transesophageal Echocardiographymentioning

confidence: 99%

Transesophageal Monitoring in Anaesthesia: An Update

Prabhu

George

2014

Curr Anesthesiol Rep

View full text Add to dashboard Cite

Transesophageal echocardiography (TEE) is increasingly used for diagnosis and monitoring in a number of clinical areas for assessment of cardiac structure and function. The use of TEE is well established in cardiac surgery but in non-cardiac surgery, TEE is recommended in preexistent cardiovascular disease causing hemodynamic compromise or in the presence of refractory hemodynamic instability or hypoxemia. Real-time 3-dimensional TEE provides exceptional images and unique views which have been pivotal in the success of minimally invasive surgery and transcatheter interventions. Although TEE is a relatively safe procedure, guidelines for standardized training, techniques and research protocols are recommended by most august bodies. The use of simulation-based learning has aided training by providing structured training opportunities and sufficient training time. TEE is a semi-invasive, portable, safe and readily available imaging modality that is likely to see an upsurge due to innovations in technology, miniaturization and an increase in minimally invasive procedures.

show abstract

“…Den ene er basert på funksjonsanalyse med stressekkokardiografi med belastningstest på andre anvendelsesområder enn den tradisjonelle iskemidiagnostikken, der man benytter farmakologisk stimulering, og brukes blant annet ved klaffesykdom og kardiomyopatier (6). Den andre beskriver bruk av tredimensjonal ultralyd (7). Det er viktige diagnostiske problemfelter som tas opp.…”

unclassified

Nye bildediagnostiske metoder i kardiologien

Nordrehaug¹

2012

Tidsskriftet

View full text Add to dashboard Cite

Hyppigere bruk av ekkokardiografi med arbeidsbelastning og tredimensjonal fremstilling vil medføre bedre diagnostikk og bedre resultat av behandling ved klaffesykdom og medfødte hjertefeil Ekkokardiografi har vaert brukt til vurdering av klaffesykdom siden 1953. Metoden ble supplert med dopplerteknikk og i løpet av 1970og 80-årene inkorporert som et klinisk verktøy i sykehus og spesialistpraksiser (1). Bruken i akuttsituasjoner ved akutt infarkt med perikardvaeske, eller mitral-eller ventrikkelseptumruptur, var tidlig banebrytende. En rekke spesialteknikker har etter hvert sett dagens lys, som ekkokardiografi via spiserørstilgang, stressekkografi, kontrastekkografi, tredimensjonal ekkografi (3D-ekko) og diverse spesialmetoder for å evaluere myokard og myokardfunksjon, blant annet vevshastighet og deformasjonsanalyse med doppler.

show abstract

Tredimensjonal ultralydundersøkelse i kardiologisk diagnostikk

Cited by 3 publications

References 39 publications

Mitral valve analysis adding a virtual semi-transparent annulus plane for detection of prolapsing segments

Mitral valve analysis adding a virtual semi-transparent annulus plane for detection of prolapsing segments

Transesophageal Monitoring in Anaesthesia: An Update

Nye bildediagnostiske metoder i kardiologien

Contact Info

Product

Resources

About