Results 251 to 260 of about 46,170 (294)

Spiral computed tomography for biliary dilatation

Journal of Pediatric Surgery, 1995
Spiral computed tomography (SCT), which consists of rapid volumetric data acquisition and planar image display, was performed on 12 patients with biliary dilatation after excisional procedure. The technique was evaluated for image quality and impact on clinical practice. All patients safely underwent SCT scanning after intravenous cholangiography (IVC)
Y, Hamada, M, Sato, T, Sanada, M, Tsuji, M, Kogata, K, Hioki   +5 more
openaire   +2 more sources

Spiral computed tomography for staghorn calculi

Urology, 1997
To assess the utility of spiral computed tomography (CT) with three-dimensional reconstruction for preoperative planning of percutaneous nephrostolithotomy in patients with complex branched calculi (full staghorns).Patients with complex branched stones were imaged with spiral CT with three-dimensional reconstruction.
S N, Liberman, E J, Halpern, K, Sullivan, D H, Bagley   +3 more
openaire   +2 more sources

Optimal pitch in spiral computed tomography

Medical Physics, 1997
The focus of this paper is to analytically optimize spiral/helical computed tomography (CT) protocols based on a simplified imaging model. Spiral CT was approximately modeled as follows: Using the half‐scan raw data interpolation method, the variance of the spiral CT slice sensitivity profile is equal to the sum of squared detector collimation divided ...
G, Wang, M W, Vannier
openaire   +2 more sources

Spiral Computed Tomography

2017
X-ray computed tomography (CT) is a medical imaging method, where the patient is placed on the CT table and an x-ray tube rotates around the body and sends x-rays through the body. Those x-rays experience a varying attenuation along their way depending on the body part they are transversing.
Erich Sorantin, Sabine Weissensteiner
openaire   +1 more source

Spiral computed tomography for bilioenteric anastomotic stricture

Pediatric Surgery International, 1998
Spiral computed tomography scanning after intravenous cholangiography (IVC-SCT) was used to assess the anatomy of the biliary tree and anastomosis in a 7-year-old girl with recurrent cholangitis 5 years after surgical excision of a choledochal cyst.
Y, Hamada, M, Sato, K, Takada, K, Hioki
openaire   +2 more sources

SPIRAL COMPUTED TOMOGRAPHY IN THE EVALUATION OF PULMONARY EMBOLISM

Clinics in Chest Medicine, 1999
Determining the presence or absence of thromboembolic disease can often be problematic. Traditional diagnostic algorithms are reviewed and discussed. Spiral CT technology allows a relatively noninvasive visualization of the pulmonary vasculature and is a promising new diagnostic modality for acute and chronic thromboembolic disease. Its potential roles
R J, Lipchik, L R, Goodman
openaire   +2 more sources

Image quality and dose in spiral computed tomography

European Radiology, 1996
Image quality and dose produced by a spiral CT with various pitch values were investigated on the basis of test-object images and measurements of CT dose indexes. No major difference in image quality or dose was observed when comparing sequential and spiral mode acquisition with a pitch of one.
F R, Verdun, R A, Meuli, F O, Bochud, C, Imsand, S, Raimondi, P, Schnyder, J F, Valley   +6 more
openaire   +2 more sources

[Defecography by spiral computed tomography].

La Radiologia medica, 1999
We investigated the possible role of helical CT defecography in pelvic floor disorders by comparing our results with those of conventional defecography.Our series consisted of 90 patients, namely 62 women and 28 men, ranging in age 24-82 years. They were all submitted to conventional defecography, and 18 questionable cases were also studied with ...
Ferrando R, Fiorini G, Beghello A, Tornago S, Cicio G, DERCHI, LORENZO, Consigliere M, Resasco M.   +7 more
openaire   +2 more sources

Spiral and Multislice Computed Tomography of the Body

American Journal of Roentgenology, 2003
Principles of CT, Spiral CT and Multislice CT Image Processing and Display Techniques Patient Preparation and Contrast Application Optimization of Scanning Technique Radiation Dose and Image Quality CT-guided Interventional Procedures Image Analysis Neck Lungs and Tracheobronchial System Mediastinum, Pleura, and Chest Wall Liver Biliary Tract Spleen ...
openaire   +2 more sources

High resolution spiral computed tomography of the pancreas.

Rays, 2001
Computed tomography (CT) is a very useful tool in the assessment of pancreatic disease. Searching for subtle signs, as in chronic pancreatitis or staging of adenocarcinoma, high spatial and contrast resolution is needed. The high resolution computed tomography (HRCT) technique for pancreatic scans, and its evolution from dynamic CT to multislice spiral
Brizi Mg, Natale L, MANFREDI, Riccardo, Sallustio G, Vecchioli A, Marano P.   +5 more
openaire   +2 more sources