helical CT
Dynamic Helical CT of T1 and T2 Glottic Carcinomas: Predictive Value for Local Control with Radiation Therapy
... Dynamic helical CT provides prognostic infor- mation for the patients with early (T1- and T2- stage) glottic carcinomas following definitive ra- diation ...
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Total Occlusion versus Hairline Residual Lumen of the Internal Carotid Arteries: Accuracy of Single Section Helical CT Angiography
... detector helical CT an- giography with those of conventional catheter arte- riography in the differentiation of hairline residual lumen from complete ICA ...
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Middle anatomical landmarks for visualization of rabbit bulbourethral glands at helical CT (Subject of area: Imaging anatomy)
... The results confirmed data for localization and topography of the rabbit bulbourethral glands, but they are different to the definition of many authors for the shape of these organs (Holtz and Foote, 1978; ...
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Radiation dose reduction at a price: the effectiveness of a male gonadal shield during helical CT scans
... The goal of our phantom study was obtain information to assist the attending radiologist in the decision to utilize such male gonadal shields in pediatric imaging practice. Although previous studies have evaluated ...
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Helical CT for the follow up of cervical internal carotid artery dissections
... (14), helical CT was found to be valuable in the diagnosis of extracra- nial ICA dissection in the acute stage, providing re- sults in close agreement with those obtained at an- ...(14), helical ...
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Helical CT Angiography: Dynamic Cerebrovascular Imaging in Children
... that helical CT venography can display detailed cortical venous and deep cerebral venous anatomy with reproduc- ible results, while Ozsvath et al (14) showed fa- vorable comparison of CT venography ...
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Combination of Helical CT and Doppler Sonography in the Follow up of Patients with Clinical N0 Stage Neck Disease and Oral Cancer
... criterion, CT depicted meta- static nodes with 42% sensitivity and 99% specificity for assessment per node and 89% sensitivity and 73% specificity for assessment per neck ...by CT yielded Az values (which ...
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Original Article Comparison of contrast-enhanced ultrasound and contrast-enhanced helical CT in the diagnosis of high echo-level small focal liver lesions
... enhanced helical CT (CECT) in high echo-level small focal liver lesions (HSFLLs) (diameter ≤3 cm), and to explore the application value of CEUS in the diagnosis and differential diagnosis of the benign and ...
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Detection and Characterization of Very Small Cerebral Aneurysms by Using 2D and 3D Helical CT Angiography
... a helical technique with routine clinical GE Hi-Speed or GE CTI single detector scanners (General Electric, Milwaukee, ...The helical technique included a pitch of ...
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Subtraction Helical CT Angiography of Intra and Extracranial Vessels
... Results of our study show that, by using a simple digital subtraction technique to remove bone, the quality of images generated with CTA can be signif- icantly improved. The crucial factors in obtaining good-quality ...
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Intracranial Stenoocclusive Disease: Double Detector Helical CT Angiography versus Digital Subtraction Angiography
... 112 CT angiograms correlated with DSA, six were slightly impaired by technical artifacts caused by a prolonged circulation time in four cases and patient movement in ...the CT angiogram but not on the ...
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Diagnostic accuracy of ultrasonography compared to unenhanced CT for stone and obstruction in patients with renal failure
... un-enhanced helical CT (UHCT) scans performed within a span of 24 hours and a serum creatinine ≥ ...on CT, CT films and medical records of patients for suspected renal/ureteral colic were ...
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Morphometric Analysis of Foramen Magnum in Gender Determination: A Radiographic Study
... Materials and methods: A total of 40 patients (20 males and 20 females; age range, 20 to 49 years) were selected for this study. The FM measurements (sagittal, transverse, circumference, and area) were obtained from ...
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Evaluation of number of renal arteries in live related renal donors by CT Angiography and Conventional Angiography
... and helical CT angiography and conventional angiography has become an accepted method for the preoperative evaluation of living donors according to some authors (Alfrey, 1995; Cocheteun, ...
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Subtraction CT angiography with controlled orbit helical scanning for detection of intracranial aneurysms
... Helical CT scanning for 3-D CT angiography and subtrac- tion 3-D CT angiography was performed using the following parameters: 120 kV, 150 mA, scan time of 1 second per rota- tion, 1-mm ...
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The Effect Of Helical Size On Uplift Pile Capacity
... is depend on the helical spacing, the pile embedment, and the soil condition. While Zhang[11] stated that the ultimate pile capacity is the embedment ratio (H/D) and the spacing ratio (S/D). The spacing ratio is ...
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Mechanism of field induced unwinding of SmC* helix and biasfield dependencies of dielectric permittivity and effective polarization
... the helical pitch in various FLC materials does not change during the helical unwinding in planar cells in contrast to a few earlier observations [12] on DOBAMBC and similar ...the helical unwinding ...
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Wave Propagation in a Helical Waveguide with Slab and Rectangular Dielectric Profiles, and Applications
... a helical waveguide with slab and rectangular dielectric profiles in the rectangular cross ...the helical waveguide. This method was developed for a helical waveguide (a space curved waveguide for an ...
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The Experimental Study on Uplift Bearing Capacity of Helical Piles in Silt Deposits
... market. Helical foundation systems are easy to install without generating the spoils and can take load immediately after installation that offer the cost- reducing alternative methods to reinforced concrete ...
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Design and Analysis of High Speed Helical Gear with Different Helical Angles
... one helical gear with calculations in CAD tool Creo- 2/Pro-E which is having helical angle 20 degrees and face width 32mm and pressure angle 20, by using CAE tool ANSYS WORKBENCH we applying high rotational ...
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