Subsecond multi-slice computed tomography: basics and applications

Klingenbeck-Regn, K.; Schaller, Stefan; Flohr, Thomas; Ohnesorge, Bernd; Kopp, Andreas F.; Baum, Ulrich

doi:10.1016/s0720-048x(99)00086-8

Cited by 409 publications

(172 citation statements)

References 13 publications

Supporting

Mentioning

154

Contrasting

Unclassified

Order By: Relevance

“…The 4 1 mm detector configuration used in our study generates 3 mm slices with a slice sensitivity profile that is superior to 3 mm slices from a 4 2.5 mm detector configuration or single slice CT [4]. Whether the choice of the detector configuration influences image quality and polyp detection rate has to be addressed in future work.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Colorectal polyps: Detection with multi-slice CT colonography

Weßling

Fischbach²,

Domagk³

et al. 2001

Rofo Fortschr Geb Rontgenstr Neuen Bildgeb Verfahr

View full text Add to dashboard Cite

Summary. Purpose: To compare the performance of virtual and conventional colonoscopy for the detection of colorectal polyps using a multislice spiral CT scanner (MSCT). Materials and Methods: 48 patients (20 women, 28 men, mean age 61.5 years) with clinical indication for conventional colonoscopy were prospectively studied using a MSCT (Somatom Volume Zoom, Siemens, Forchheim). Examination was performed after standard oral preparation for colonoscopy and colonic distension with room air and i. v. butylscopolamin. Images were obtained in prone and supine position using a detector configuration of 4 1 mm, a table feed of 5 mm/rotation at 140 mAs and 120 kV. Slice thickness and reconstruction increment were 3 and 1.5 mm, respectively. CT data were assessed by two blinded radiologists on a Vitrea workstation (Vital Images, USA) using a software with multiplanar and volume-rendering capabilities. Results: 33 patients had normal findings on conventional colonoscopy. In 15 patients a total of 30 polyps and one carcinoma with stenosis were identified. MSCT-colonography identified the carcinoma and 23 polyps (77 %). 3 of 3 polyps were 10 mm or more (100 %), 6 of 7 were 5.1 to 9.9 mm (86 %) and 14 of 20 were 5 mm or smaller (70 %). There were 13 false positive findings for polyps (10 lesions < 6 mm in 5 patients) and no false positive finding of carcinoma. Conclusions: MSCT colonography allows accurate detection of polyps larger than 10 mm. Compared to published results of single-slice CT, multislice CT colonography increases the rate of detection of small colorectal polyps in particular. However, false positive results still remain a problem. Schlüsselwörter: Polypen ± Computertopographie ± Kolographie ± Mehrschicht-CT

show abstract

Section: Discussionmentioning

confidence: 99%

“…Recently introduced multi-slice CT (MSCT) scanners represent a significant improvement in CT technology, combining high resolution thin slice imaging with high speed volume coverage [4,5]. MSCT has already been shown to improve the demonstration of colonic distention and to depict fewer respiratory artefacts [6].…”

Section: Introductionmentioning

confidence: 99%

Colorectal polyps: Detection with multi-slice CT colonography

Weßling

Fischbach²,

Domagk³

et al. 2001

Rofo Fortschr Geb Rontgenstr Neuen Bildgeb Verfahr

View full text Add to dashboard Cite

show abstract

“…Regarding the influence of metal stent-associated artifacts on CT acquisition conditions, Maintz et al and Klingenbeck-Regn et al 14) reported the helical pitch and detector width as factors, respectively: the influence of artifacts increased and the visibility of the lumen decreased as the helical pitch and detector width increased.…”

Section: ) Three-dimensional Displaymentioning

confidence: 99%

Multidetector-row CT Angiography of Lower Extremities: Usefulness in the Diagnosis of and Intervention for Peripheral Arterial Disease

Matsumoto

Jinzaki

Satô

et al. 2010

Annals of Vascular Diseases

View full text Add to dashboard Cite

CT angiography (CTA) based on the data acquired by multidetector-row CT (MDCT) is an established, minimally invasive modality for imaging peripheral arteries. CTA has been used to assess peripheral arterial disease before treatment, and it has replaced conventional angiography for the diagnostic evaluation of peripheral arteries. MDCT can optimize both the long scan length and spatial resolution. CTA using MDCT depicts the fine structures of vessels. Recently, automated CTA analysis software has been developed for measurement of the vascular lumen. The software can automatically measure the diameters of short axial sections at the post-processing workstation. Measurement of the vascular lumen is useful in the planning of intravascular treatment for peripheral arterial disease. CTA is also utilized in assessing the intravascular lumen after metallic stent placement.

show abstract

“…MDCT was introduced in 1998 (Klingenbeck-Regn et al 1999, Hu et al 2000 and improved the relationship between scan duration, available scan length, and spatial resolution along the patient axis (z-axis). In comparison to single-slice SCT, MDCT allows for simultaneous acquiring of multiple sections within a single tube rotation and all scanners offer subsecond rotation speed, thus increasing the performance substantially (Fig.…”

Section: Multidetector Computed Tomography (Mdct)mentioning

confidence: 99%

Multidetector computed tomography in acute joint fractures

Haapamäki

Kiuru²,

Mustonen³

et al. 2005

Acta Radiol

View full text Add to dashboard Cite

Conventional radiography plays an essential diagnostic role in the primary evaluation of acute joint trauma. In complex fractures, however, computed tomography (CT) is an imaging modality often used second to radiography. As a result of technical breakthroughs in the field, multidetector CT (MDCT) allows faster imaging and better temporal, spatial, and contrast resolution compared with conventional single-slice spiral CT. MDCT with multiplanar reformation is helpful in disclosing fracture patterns, particularly in complex joint fractures, where they reveal occult fractures and show the exact number of fracture components and their degree of displacement.

show abstract

Subsecond multi-slice computed tomography: basics and applications

Cited by 409 publications

References 13 publications

Colorectal polyps: Detection with multi-slice CT colonography

Colorectal polyps: Detection with multi-slice CT colonography

Multidetector-row CT Angiography of Lower Extremities: Usefulness in the Diagnosis of and Intervention for Peripheral Arterial Disease

Multidetector computed tomography in acute joint fractures

Contact Info

Product

Resources

About