نتایج جستجو برای: sagittal

تعداد نتایج: 10943  

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2007
W Plasencia T Dagklis M Borenstein B Csapo K H Nicolaides

OBJECTIVES To determine the range of positions of the fetal head in which a three-dimensional (3D) volume is acquired for subsequent successful imaging of the corpus callosum. METHODS We used 3D volumes of the fetal head obtained from singleton pregnancies at 20 to 23 + 6 weeks' gestation. The volumes, which had been acquired with the head in different positions, were then reconstructed with ...

Journal: :The Journal of bone and joint surgery. American volume 2004
Keith H Bridwell Stephen J Lewis Anthony Rinella Lawrence G Lenke Christy Baldus Kathy Blanke

BACKGROUND Fixed sagittal imbalance (a syndrome in which the patient is only able to stand with the weight-bearing line in front of the sacrum) has many etiologies. The most commonly reported technique for correction is the Smith-Petersen osteotomy. Few reports on pedicle subtraction procedures (resection of the posterior elements, pedicles, and vertebral body through a posterior approach) are ...

2017
J. Kim J. Y. Hwang J. K. Oh M. S. Park S. W. Kim H. Chang T-H. Kim

OBJECTIVES The objective of this study was to assess the association between whole body sagittal balance and risk of falls in elderly patients who have sought treatment for back pain. Balanced spinal sagittal alignment is known to be important for the prevention of falls. However, spinal sagittal imbalance can be markedly compensated by the lower extremities, and whole body sagittal balance inc...

2013
James A. Nunley Samuel B. Adams Constantine A. Demetracopoulos Nicholas A. Viens James K. DeOrio Mark E. Easley

Background: The majority of total ankle arthroplasty (TAA) systems use extramedullary alignment guides for tibial component placement. However, at least 1 system offers intramedullary referencing. In total knee arthroplasty, studies suggest that tibial component placement is more accurate with intramedullary referencing. The purpose of this study was to compare the accuracy of extramedullary re...

Journal: :AJR. American journal of roentgenology 1984
D I Rosenthal A E Stauffer K R Davis M Ganott J M Taveras

Axial computed tomographic (CT) images were compared with sagittal and coronal reformations and myelograms in 60 patients to evaluate the diagnostic usefulness of multiplanar reconstructions for the recognition of lumbar disk disease. The axial CT scans were most sensitive and specific. The sagittal scans were helpful in evaluating the neural foramina, the size of the disk bulge into the spinal...

2015
Abdullah M. Aldrees Abdulmajeed M. Al-Shujaa Mohammad A. Alqahtani Ali S. Aljhani

BACKGROUND Orthodontic patients show high prevalence of tooth-size discrepancy. This study investigates the possible association between arch form, clinically significant tooth-size discrepancy, and sagittal molar relationship. METHODS Pretreatment orthodontic casts of 230 Saudi patients were classified into one of three arch form types (tapered, ovoid, and square) using digitally scanned ima...

2009
D Chekryzhev A Mezentsev D Petrenko

Materials and methods Forty four scoliosis patients (10 boys, 34 girls) who were treated with a Cheneau brace were enrolled. The age range was 9-16 years old. The Cobb angle of the major curve ranged from 22° to 56°. Sagittal spine profile was evaluated with a diagnostic tool called the "Spinal Mouse" before and during the brace treatment. Outcome We found a nearly perfect correlation between r...

Journal: :Zhurnal voprosy neirokhirurgii imeni N. N. Burdenko 2013
A A Sufianov S S -Kh Gaibov R A Sufianov

The article is devoted to the surgical treatment of sagittal craniosynostosis in children. Among non-syndromic monosynostosis sagittal craniosynostosis (scaphocephaly) is the most common. Treatment of children with craniosynostosis should begin as soon as possible. Endoscopic method refers to minimally invasive technique in surgical correction of craniosynostosis. This article presents a featur...

2013
Oğuz Aslan Özen Ozan Turamanlar Oğuz Kırpıko Ahmet Songur Olcay Eser

It is important to define the dural sinuses during assessment of the clinical presentations in neurosurgery and neurology and especially before performing surgical interventions involving the brain. Variations of dural sinuses are frequently seen in confluence of the sinuses. In our case, cranial venous MRI angiography of a 49-year-old male patient demonstrated that the superior sagittal sinus ...

2007
Christer Ytterbergh

In studies of the articulation in speech data on the pharynx are scarce. Still, the pharynx is an important part of the vocal tract. The present paper reports on an attempt to use computer tomography for investigating the pharynx. Tomograms were taken at four levels in the pharynx of a male and a female subject sustaining the vowels /u, i, 0, oe/. From the tomograms the lateral width and the cr...

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