EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
EurekaMag PDF Full Text Supply ServicePDF Full Text Supply Service
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn
Follow on LinkedInFollow on Tumblr

+ Translate

Spectral considerations for absorption-edge fluoroscopy


, : Spectral considerations for absorption-edge fluoroscopy. Medical Physics 4(1): 26-35

In our previous reports on absorption-edge fluoroscopy, it was not possible to relate fully the subtleties involved in the selection of spectral parameters. This paper is intended as an overview of this important aspect of the technique. It is shown that, by using the 1-kVp, 2-filter technique, it is possible to image certain elements (e.g., iodine and xenon) in the presence of tissue variations of +/-2 cm about the thickness at which perfect tissue cancellation takes place. Use of logarithmic signal processing extends this range, but bone thickness variations may not be accomodated because only two x-ray energies are involved in the imaging process. Use of a 3-kVp, 3-filter technique with logarithmic signal processing is shown to solve this problem. Computer simulations show that 1-mg/cm2 iodine may be imaged in the presence of 10 cm or more tissue variations and 2000-mg/cm2 bone variations.

(PDF same-day service: $19.90)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 041408795

PMID: 840185

DOI: 10.1118/1.594298

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Skurygina, N. A., 1970: Obtaining disease-resistant bread wheat through hybridization with Triticum timopheevi Zhuk. In 1956-1967, crosses of the T. aestivum (2n = 42) varieties Diarnant and Tulun 70 with T. timopheevi var. viticulosum (2n = 28) ere effected. The hybrids had good mature-plant disease resistance and were typical soft-wheat types. Hybrid material...

Archambeaud Mouveroux F.; Morand P.; Jadaud J.M.; Ardilouze J.L.; Bernard P.; Bonnetblanc J.M.; Catanzano G., 1987: Gastrointestinal and cardiac metastases revealing malignant melanoma. Semaine des Hopitaux 63(42): 3281-3285

Yokoyama K.; Gimenes Fernandes N., 1985: Effect of fungicides on the control of diseases of the aerial part and on the productivity of the peanut arachis hypogaea. Fitopatologia Brasileira 10(2): 274

Kieseker, F. G.; Eustace, I. J., 1975: Manufacture by conventional churning of butter high in linoleic acid: technology, physical properties and sensory evaluation. Initial problems associated with the conventional churning of butter containing elevated levels of linoleic acid (Alta) were overcome by vacreation of the cream, low churning temp. ( less than or equal to 4 deg C), and the use of breakwater to ret...

Hostein, I.; Lamy, A.; Faur, N.; Primois, C.; Verdon, Séverine.; Sabourin, J-Christophe.; Soubeyran, I., 2011: The detection of double mutations in KRAS depends on the mutation-detection assay used. Clinical Chemistry 57(7): 1077-1079

Anderson, K., 1981: Politicoeconomic factors affecting public agricultural research investment in developing countries. "An important question for developing countries, then--especially those in which agriculture dominates the economy and where public funds are difficult to raise--is whether the optimal amounts and types of public research investments are be...

Liu, C-Lin.; Shen, C-Rui.; Hsu, F-Fu.; Chen, J-Kuan.; Wu, P-Tzu.; Guo, S-Hsin.; Lee, W-Chien.; Yu, F-Wei.; Mackey, Z.B.; Turk, J.; Gross, M.L., 2009: Isolation and identification of two novel SDS-resistant secreted chitinases from Aeromonas schubertii. Two SDS-resistant endochitinases, designated as ASCHI53 and ASCHI61, were isolated from Aeromonas schubertii in a soil sample from southern Taiwan. MALDI-TOF mass measurement indicates the molecular weights of 53,527 for ASCHI53 and 61,202 for ASC...

Apoian, K.Kh.; Abeshian, M.M.; Gofmekler, V.A.; Mnatsakanian, A.V.; Mutafian, G.A., 1970: Spectrophotometric method of determining chloraprene in the air. Gigiena i Sanitariia 35(9): 61-64

Hayashibe, K.; Mishima, Y., 1988: Tyrosinase-positive melanocyte distribution and induction of pigmentation in human piebald skin. White forelock and hypomelanotic macules of piebaldism have been revealed to have almost regularly distributed, dopa-positive melanocytes, though with lower density than normal, on separated epidermis despite previous reports describing few or no...

Stuve, O.; Louwrens, H.; Hill, J.; Immelman, E.J., 1996: The value of routine computed tomography of the brain in the pre-operative assessment of patients for carotid endarterectomy. Objective: To determine the prevalence of brain infarcts and other intracranial pathology on computed tomography (CT) in patients with greater than 50% internal carotid artery stenosis. Design: Descriptive study of CT findings. Setting: Referral-b...