Sökning: "three-dimensional ultrasound"

Visar resultat 6 - 10 av 22 avhandlingar innehållade orden three-dimensional ultrasound.

1. 6. Surgical complications after vaginal and caesarean delivery

   Författare :Charlotta Larsson; Pär Nordin; Ewa Lundgren; Katarina Tunón; Peter Mathiessen; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgical complications; cardiovascular complications; anal incontinence; anal sphincter injuries; caesarean section; vaginal delivery; three-dimensional endoanal ultrasound; Surgery; kirurgi;

   Sammanfattning : Background: Obstetric anal sphincter injuries (OASIS) after vaginal delivery are the most common cause of anal incontinence in women. Symptoms range from faecal urgency and soiling to inability to control flatus and passive faecal incontinence. OASIS are also associated with urinary incontinence, perineal pain, and sexual dysfunction. LÄS MER

3. 7. In Vivo Evaluation of Skeletal Muscle Morphological and Mechanical Properties using Medical Imaging

   Författare :Zhongzheng Wang; Ruoli Wang; Elena Gutierrez Farewik; Rodrigo Moreno; Jonas Stålhand; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Muscle volume; fascicle length; pennation angle; anisotropy; three-dimensional freehand ultrasound; magnetic resonance imaging; diffusion tensor imaging; magnetic resonance elastography; Muskelvolym; fascikellängd; pennationsvinkel; anisotropi; tredimensionellt frihandsultraljud; magnetisk resonanstomografi; diffusionstensoravbildning; magnetisk resonanselastografi; Teknisk mekanik; Engineering Mechanics;

   Sammanfattning : Skeletal muscles are soft tissues that play an important role in maintaining body posture and enabling movements through force generation. The force-generating capacity is associated with the morphological and mechanical properties of the muscle. LÄS MER

4. 8. Image Analysis and Enhancement with Applications in Medicine

   Författare :Lars Floreby; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zubal; segmentation; Compton; SPECT; morphological; enhancement; multiscale; dynamic programming; motion estimation; optical flow; echocardiography; speckle; Image analysis; ultrasound; Signalbehandling; Signal processing; Fourier surface.;

   Sammanfattning : This thesis consists of six parts in which methods for image analysis and processing are studied. Two-dimensional medical images, image sequences, and three-dimensional image volumes are considered. LÄS MER

5. 9. The use of ultrasound in the prediction of endometrial cancer in women with postmenopausal bleeding

   Författare :Gina Opolskiene; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; endometrial neoplasms; ultrasonography; postmenopause; Doppler ultrasound;

   Sammanfattning : The aim of the work presented in this thesis was to identify the ultrasound methods and ultrasound features that are most useful for the prediction of endometrial cancer in patients with postmenopausal bleeding and sonographic endometrial thickness 4.5 mm or more. LÄS MER

7. 10. Spatio-temporal filtering of ultrasound image sequences

   Författare :Nina Eriksson-Bylund; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : A number of diseases result in reduced perfusion of the vital organs of the body. Measures of the blood flow in the small vessels (the perfusion) of these organs would contribute significantly to a clinical diagnosis. Myocardial contrast echocardiography is a rapidly developing technique for non-invasive ultrasound imaging of perfusion. LÄS MER