Clinical application and technique of 64-slice spiral CT subtraction angiography in head and neck

VASA ◽  
2012 ◽  
Vol 41 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Yang ◽  
Huang ◽  
Duan
Keyword(s):  
Image Quality ◽  
Head And Neck ◽  
Clinical Application ◽  
Vascular Diseases ◽  
Spiral Ct ◽  
Digital Subtraction ◽  
Surgical Operation ◽  
Imaging Parameters ◽  
Examination Techniques ◽  
Head Neck

Background: To discuss the technique of 64-slice spiral CT subtraction angiography (64-SCTSA) in head and neck, and evaluate its clinical application. Patients and methods: 84 patients suspected of head-neck vascular diseases were examined with 64-SCTSA. The examination techniques, image quality and clinical application were retrospectively analyzed, and the diagnoses of 64-SCTSA were compared with those of surgery or DSA. Results: Eighty-four subjects were successfully examined with 64-SCTSA, whose scanning and imaging parameters are effective. Image quality was excellent in 51 cases (60.7 %), good in 29 (34.5 %) and acceptable in 4 (4.8 %). In the 84 subjects, 79 cases were found abnormal in blood vessel (58 in head and 21 in neck), of which 57 were confirmed by surgical operation or digital subtraction angiography (DSA). Conclusions: 64-SCTSA is a feasible technique with satisfactory image quality and has the advantages of showing the lesions of vasculature without shelter from bone. It can improve the diagnostic accuracy in head-neck vascular diseases.

scholarly journals Head and neck effective dose and quantitative assessment of image quality: a study to compare cone beam CT and multislice spiral CT

2017 ◽  
Vol 46 (7) ◽  
pp. 20170030 ◽  
Author(s):  
Cosimo Nardi ◽  
Cinzia Talamonti ◽  
Stefania Pallotta ◽  
Paola Saletti ◽  
Linda Calistri ◽  
...  
Keyword(s):  
Image Quality ◽  
Head And Neck ◽  
Effective Dose ◽  
Quantitative Assessment ◽  
Cone Beam Ct ◽  
Spiral Ct ◽  
Cone Beam ◽  
Multislice Spiral Ct

Optimising imaging parameters in experimental spiral CT

1997 ◽  
Vol 38 (5) ◽  
pp. 913-917
Author(s):  
M. Tiitola ◽  
T. Vehmas ◽  
R. P. Kivisaari ◽  
L. Kivisaari
Keyword(s):  
Image Quality ◽  
Radiation Exposure ◽  
High Speed ◽  
Low Dose ◽  
In Vitro Study ◽  
Spiral Ct ◽  
Lesion Detection ◽  
Imaging Parameters ◽  
Speed Advantage

Purpose: This in vitro study was conducted to analyse lesion detection and relative radiation exposure in different CT techniques. Material and Methods: We used a plastic phantom (12x8x2 cm) containing holes filled with air or fluid of varying densities to simulate lesions. This was imaged with Siemens Somatom Plus S and GE High Speed Advantage units. We varied table feeds (3 and 6 mm/s in Siemens and 3 and 4.5 mm/s in GE) and increments (2 mm and 4 mm) while keeping collimation at 3 mm. The Smartscan program of GE and the reformatting algorithm of Siemens were also analysed. To evaluate the different methods, the phantom lesions were counted by 3 observers. Radiation exposures associated with each technique were also measured. Results: The images reformatted to a coronal direction were significantly inferior (p < 0.01) to those in other techniques. The use of Smartscan did not influence lesion detection, nor did changes in pitch or increment. Spiral and non-spiral techniques proved to be equal. Radiation exposure was lowest when a greater pitch or the Smartscan program was used. Conclusion: Radiation exposure in CT can be limited without significantly impairing the image quality by using low-dose techniques. Reformatting to a coronal direction should be used with care as it debases the image quality.

Diffusion-weighted imaging of the head and neck with HASTE: influence of imaging parameters on image quality

2012 ◽  
Vol 28 (2) ◽  
pp. 87-94 ◽  
Author(s):  
Junichiro Sakamoto ◽  
Yoshinori Sasaki ◽  
Mika Otonari-Yamamoto ◽  
Keiichi Nishikawa ◽  
Tsukasa Sano
Keyword(s):  
Image Quality ◽  
Head And Neck ◽  
Diffusion Weighted Imaging ◽  
Imaging Parameters ◽  
Diffusion Weighted

Lugol Iodine Staining Test in Early Detection of Head and Neck Cancer

2017 ◽  
Vol 68 (8) ◽  
pp. 1944-1945
Author(s):  
Catalin Stefan ◽  
Gabriel Lostun ◽  
Alexandra Lostun
Keyword(s):  
Head And Neck Cancer ◽  
Head And Neck ◽  
Neck Cancer ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Iodine Staining ◽  
Examination Techniques ◽  
Staining Techniques ◽  
Malignant Lesions

Head and neck cancer represents 3% of malignancies, and it is associated with high mortality due to advanced stage diagnosis. In early stages, the symptomatology can either be absent or be very common, misleading the patient who often ignores it. Early diagnosis of head and neck neoplasia is essential for a favorable long-term outcome. Lately new in vivo examination techniques were developed, and older ones have been improved. Today, in vivo staining techniques are an important tool in the diagnostic of head and neck cancer. Lugol iodine staining method provides valuable information concerning the tumor, allowing the surgeon to differentiate premalignant and malignant lesions.

Intra-arterial digital subtraction angiography of the head and neck.

Radiology ◽  
1983 ◽  
Vol 147 (3) ◽  
pp. 717-724 ◽  
Author(s):  
M A Weinstein ◽  
W A Pavlicek ◽  
M T Modic ◽  
P M Duchesneau
Keyword(s):  
Head And Neck ◽  
Digital Subtraction Angiography ◽  
Digital Subtraction
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