• No results found

Low-dose CT

Density of the midpalatal suture after RME treatment – a retrospective comparative low-dose CT-study

Density of the midpalatal suture after RME treatment – a retrospective comparative low-dose CT-study

... Low-dose CT scans were taken initially before placement of the RME (T0), directly after maximal activation (T1) and (in six cases) also in retention after 6 months ...

5

Low dose CT for quantitative analysis in acute respiratory distress syndrome

Low dose CT for quantitative analysis in acute respiratory distress syndrome

... of CT images has not been defined, and, in parti- cular, widely variable mAs have been reported in both experimental [15,16] and clinical settings ...Although low-dose CT has been used ...

10

Low Dose CT for Craniosynostosis: Preserving Diagnostic Benefit with Substantial Radiation Dose Reduction

Low Dose CT for Craniosynostosis: Preserving Diagnostic Benefit with Substantial Radiation Dose Reduction

... all dose levels by using appropriate strengths of iterative recon- ...to dose reductions on the order of 90%. Tailored low-dose CT examinations for the evaluation of cranio- synostosis ...

6

Repeated Head CT in the Neurosurgical Intensive Care Unit: Feasibility of Sinogram Affirmed Iterative Reconstruction–Based Ultra Low Dose CT for Surveillance

Repeated Head CT in the Neurosurgical Intensive Care Unit: Feasibility of Sinogram Affirmed Iterative Reconstruction–Based Ultra Low Dose CT for Surveillance

... Scanner selection was based on availability. If the patient was scanned on the non-IR-equipped machine, a FBP-based SDCT was performed. If the IR-equipped scanner was available, our standard clinical LDCT was used for ...

7

Clinical significance of incidental thyroid nodules identified on low-dose CT for lung cancer screening

Clinical significance of incidental thyroid nodules identified on low-dose CT for lung cancer screening

... All CT examinations were performed using a 16-detector row CT scanner (Sensation 16; Siemens, Erlangen, Germany) or a dual-source CT scanner (SOMATOM Definition, Siemens Medical Solutions, Forchhein, ...

7

Schneider, Vera Marina
  

(2009):


	Native, low-dose CT versus kontrastverstärkte, "full-dose" CT in der PET/CT-Diagnostik maligner Melanome.


Dissertation, LMU München: Medizinische Fakultät

Schneider, Vera Marina (2009): Native, low-dose CT versus kontrastverstärkte, "full-dose" CT in der PET/CT-Diagnostik maligner Melanome. Dissertation, LMU München: Medizinische Fakultät

... Zusätzlich konnten 12 von 13 Leber- und Milzmetastasen nicht mit der Nativ-CT detektiert werden. Drei von ihnen wurden weder in der Nativ-CT noch in der KM-CT erkannt, in den zusätzlichen neun Fällen ...

132

Body Pushers: Low Dose CT, Always the Best Choice? A Study of the Diagnostic Performance of CT Scout View

Body Pushers: Low Dose CT, Always the Best Choice? A Study of the Diagnostic Performance of CT Scout View

... and CT [4] [7] [8] [10] [12] [13] to MRI [14], ultrasound [5] [9] and less well known methods as low-dose linear slit digital radiography “LSDR and Lodox” [8], the most established ex- amination ...

9

Segmental Bronchial Diameter Measurement at Inspiration-Expiration Phase by Low-dose MSCT in Healthy Volunteers

Segmental Bronchial Diameter Measurement at Inspiration-Expiration Phase by Low-dose MSCT in Healthy Volunteers

... radiation dose while maintaining adequate image quality. Notably, the low dose CT protocol at 50 mAs can produce consistent screening results with those of the standard dose CT ...

6

Feasibility of low dose chest CT for virtual bronchoscopy navigation in a porcine model

Feasibility of low dose chest CT for virtual bronchoscopy navigation in a porcine model

... consecutive CT scans consisting of four LDCTs with different kVp and mAs settings, and a standard dose CT as a ...All CT images were obtained on a multidetector scanner (Sie- mens Somatom ...

7

Low Dose Nonenhanced Head CT Protocol for Follow Up Evaluation of Children with Ventriculoperitoneal Shunt: Reduction of Radiation and Effect on Image Quality

Low Dose Nonenhanced Head CT Protocol for Follow Up Evaluation of Children with Ventriculoperitoneal Shunt: Reduction of Radiation and Effect on Image Quality

... and low-dose CT scans in our study were not concurrently ...Standard-dose CT scan would also have served as a reference standard against which the diagnostic quality and imaging ...

5

Image quality improvement using model-based iterative reconstruction in low dose chest CT for children with necrotizing pneumonia

Image quality improvement using model-based iterative reconstruction in low dose chest CT for children with necrotizing pneumonia

... Low-dose CT is widely used and necessary, but trad- itional FBP reconstruction technique provides limited image quality to balance spatial resolution and image noise when using low radiation ...

8

Radiation dose reduction in CT-guided periradicular injections in lumbar spine: Feasibility of a new institutional protocol for improved patient safety

Radiation dose reduction in CT-guided periradicular injections in lumbar spine: Feasibility of a new institutional protocol for improved patient safety

... established low-dose-CT-protocol for periradicular injections in patients suffering from lumbar disc herniation and nerve root ...measured dose length product (mGycm2), the amount of scans, ...

5

Image quality and pathology assessment in CT Urography: when is the low-dose series sufficient?

Image quality and pathology assessment in CT Urography: when is the low-dose series sufficient?

... of low-dose CT (LDCT) due to the high contrast between urinary stones and the surrounding soft tissue [15, 20] as well as in investigation of acute abdo- men ...the low quality of the images ...

9

Radiation dose reduction in CT-guided sacroiliac joint injections to levels of pulsed fluoroscopy: a comparative study with technical considerations

Radiation dose reduction in CT-guided sacroiliac joint injections to levels of pulsed fluoroscopy: a comparative study with technical considerations

... the low-dose CT group with the Mann–Whitney U-test, no significant difference between the groups was found (P = ...radiation dose reduction in other spinal ...

5

Illegal intra-corporeal packets: can dual energy CT be used for the evaluation of cocaine concentration? A cross sectional study

Illegal intra-corporeal packets: can dual energy CT be used for the evaluation of cocaine concentration? A cross sectional study

... to low-dose CT (LDCT) imaging ...on CT-scanners has opened new perspectives in tissue and material characterization ...energy CT technology (DECT) may be used to differentiate heroin ...

7

Spectrum of early lung cancer presentation in low-dose screening CT: a pictorial review

Spectrum of early lung cancer presentation in low-dose screening CT: a pictorial review

... Compared to peripherally located carcinomas, such lung cancers could be difficult to detect because low-dose CT images are unenhanced scans and possibly because screen- ing a population at this ...

11

coronary angiography using an ultra-low contrast media

coronary angiography using an ultra-low contrast media

... a low level, the mean CT attenuation in the root of the ascending aorta and coronary artery seg- ments were still as high as 400-500HU, which was sufficient for obtaining diagnostic quality ...optimal ...

13

Low Dose Volume of Interest C Arm CT Imaging of Intracranial Stents and Flow Diverters

Low Dose Volume of Interest C Arm CT Imaging of Intracranial Stents and Flow Diverters

... VOI CACT, microstructural changes of devices can be visualized, allowing a more complete understanding of these variations in stent configurations. The use of contrast in conjunction with a VOI acquisition allows ...

7

Influence of Ultra Low Dose and Iterative Reconstructions on the Visualization of Orbital Soft Tissues on Maxillofacial CT

Influence of Ultra Low Dose and Iterative Reconstructions on the Visualization of Orbital Soft Tissues on Maxillofacial CT

... cranial CT in the emergency setting), a high-resolution reference dose protocol (as used for surgi- cal planning and navigated surgery), and a subsequent series of low- dose protocols (LDPs) ...

6

Vascular CT and MRI: a practical guide to imaging protocols

Vascular CT and MRI: a practical guide to imaging protocols

... factors such as body size, cardiac output and disease state can influence inter-individual variation in arterial en- hancement. For example, large calibre and diseased ves- sels may take longer to opacify than normal. ...

22

Show all 10000 documents...

Related subjects