Because the two scans can be performed in immediate sequence during the same session, with the patient not changing position between the two types of scans, the two sets of images are more-precisely registered, so that areas of abnormality on the PET imaging can be more perfectly correlated with anatomy on the CT images.

Because individual PET scans are more expensive than " conventional " imaging with computed tomography ( CT ) and magnetic resonance imaging ( MRI ), expansion of FDG-PET in cost-constrained health services will depend on proper health technology assessment ; this problem is a difficult one because structural and functional imaging often cannot be directly compared, as they provide different information.

Because stomach cancer can spread to the liver, the pancreas, and other organs near the stomach as well as to the lungs, the doctor may order a CT scan, a PET scan, an endoscopic ultrasound exam, or other tests to check these areas.

Because DMT is volatile, it is an intermediate is some schemes for the recyclic of PET, e. g. from plastic bottles.

Because of its paramagnetic properties, solutions of chelated organic gadolinium complexes are used as intravenously administered gadolinium-based MRI contrast agents in medical magnetic resonance imaging.

Because SPECT acquisition is very similar to planar gamma camera imaging, the same radiopharmaceuticals may be used.

Because SPECT permits accurate localisation in 3D space, it can be used to provide information about localised function in internal organs, such as functional cardiac or brain imaging.

Because imaging procedures are expensive and relatively inaccessible to most patients, diagnosis of FAS is not frequently made via structural impairments, except for microcephaly.

Because better visualization of the atria is achieved with transesophageal echocardiography, this test may be performed in individuals with a suspected ASD which is not visualized on transthoracic imaging.

Because the heart is located behind the sternum, and because individuals with pectus excavatum have been shown to have visible deformities of the heart ( seen both on radiological imaging and after autopsies ), it has been hypothesized that there is impairment of function of the cardiovascular system in individuals with pectus excavatum.

Because of their limited light gathering capability, small telescopes are usually not well-suited to spectroscopy, although some useful spectroscopic work can be performed with reflecting type telescopes with a primary mirror as small as 14 " ( 35 cm ) when equipped with the increasingly sophisticated modern imaging and spectroscopic instrumentation recently becoming available to amateur astronomers.

Because holography requires coherent imaging, these effects are much more severe than traditional imaging conditions.

Because in many cases Sertoli-Leydig cell tumour does not produce elevated tumour markers, the focus of surveillance is on repeated physical examination and imaging.

Because isotopes for therapy and imaging often have a relatively short half-life ( under 10 days ), it is necessary to adjust the data in order to compare all the time points.

Because minimally conscious state has been a relatively new criteria for diagnosis, there are very few functional imaging studies of patients with this condition.

Because depth of field is a characteristic of lens focal length ( in addition to aperture and focus distance setting ), it is easier to achieve a deep-focus look with a smaller imaging sensor or film gauge.

Because different types of imagery support different types of interpretation tasks, individual NIIRS has been developed for four major imaging types: Visible, Radar, Infrared, and Multispectral.

Because phase-contrast imaging relies on differences in phase between electrons leaving the sample, any additional phase shifts that occur between the sample and the viewing screen can make the image impossible to interpret.

Because God is what He is, the laws of the universe, material and spiritual, are what they are.

Because of these involvements in the matter at stake, Boniface lacked the impartiality that is supposed to be an essential qualification for the position of arbiter, and in retrospect that would seem to be sufficient reason why the English embassies to the Curia proved so fruitless.

Because of the means of publication -- science-fiction magazines and cheap paperbacks -- and because dystopian science fiction is still appearing in quantity the full range and extent of this phenomenon can hardly be known, though one fact is evident: the science-fiction imagination has been immensely fertile in its extrapolations.

Because administration of the forest highway system is a responsibility of the Secretary of Commerce with maintenance provided by the States and counties, this Development Program for the National Forests does not include estimates of the funds needed to maintain the forest highway system nor to construct the additions to it that are needed.

Because the bobbin-to-cone winding process is a relatively high-cost operation for the mill, the almost complete automation provided by the Uniconer can mean important economies in textile production, at the same time upgrading quality.

Because of its importance, and because the lack of price competition is well recognized, the industry is under considerable public pressure not to raise its price any more than could be justified by cost increases.

Because community not severalty of property is the law of nature no man can assert an absolutely unalterable right to what is his.

Because of undesirable flavors, odors, colors, and generally low palatability associated with radiation treatment of this magnitude, the inactivation of enzymes is best accomplished prior to irradiation by the conventional heat-processing methods of blanching.

Because agricultural activities are seasonal and the areas of production and harvest of many foods are widely scattered geographically, and because of the high cost of transporting bulk food items any substantial distance to a central processing location, the use of large central processing stations, where low-cost radiation facilities approaching the megawatt range might be utilized, is inherently impracticable.

Because the rake angle Af at the tip of the knife is very much smaller ( or even negative ) when compared to the value of **yc for the major portion of the knife, a very rapid increase in cutting force with thickness will result.

Because the food is selected with thought for its nutritional value, care for its origin, and prepared in a manner that retains the most nutrients, the food does taste good.

-- Held out of Texas Tech's sweat-suits drill Monday at Lubbock was tackle Richard Stafford, who is undergoing treatment for a leg injury suffered in the Raiders' 38-7 loss to Texas A & M Because of its important game with Arkansas coming up Saturday, Baylor worked out in the rain Monday -- mud or no mud.

Because it is so large a state, with marked contrasts in population density, the organization of the New York co-operative offers a cross-section of how the plan works.

Because of this Dr. Bonnor holds that the universe is becoming more thinly populated by stars and whatever else is there.

Because all living beings possess a soul, great care and awareness is essential in one's actions.

Because anthropology developed from so many different enterprises ( see History of Anthropology ), including but not limited to fossil-hunting, exploring, documentary film-making, paleontology, primatology, antiquity dealings and curatorship, philology, etymology, genetics, regional analysis, ethnology, history, philosophy, and religious studies, it is difficult to characterize the entire field in a brief article, although attempts to write histories of the entire field have been made.

Because most embryonic development is outside the parental body, it is subject to many adaptations due to specific ecological circumstances.

Because experimentation is iterative, the

Because the range of possible values for K < sub > a </ sub > spans many orders of magnitude, a more manageable constant, pK < sub > a </ sub > is more frequently used, where pK < sub > a </ sub >

Because of the unique design by the architect Egils Hermanovski, you can build most of it in your own home workshop in your spare time.

Because they prepare their own meals they also keep in their pockets a good portion of that $10.50 food bill along with most of the tip money.

" The Chicago Daily Tribune called it “ One of the most spectacular crimes of the 20th century, and what is believed to be the first airplane kidnap murder on record .” Because it occurred somewhere over three Missouri counties, and involved interstate transport of a stolen airplane, it raised questions in legal circles about where, by whom, and even whether he could be prosecuted.

Because the original designer had left the company another employee completely redesigned most of the system, ( adding a display snow remover circuit, true 80 / 64 column text mode support, ( with different size letters for TRS-80 and CP / M mode, so that in TRS-80 mode the full screen was also used, not just a 64x16 portion of the 80x25 screen ) with an improved font set ( adding " gray scale " version of the TRS-80 mozaik graphics and many special PETSCII like characters ), and a more flexible and reliable floppy disk controller and keyboard interface plus many other small improvements ), also an enclosure was developed for the main computer system, ( in the form of a 19-inch rack for the Eurocards ) and for two floppy disk drives and the power supply.

Because Aediles were not reimbursed for any of their public expenditures, most individuals who sought the office were independently wealthy.

Because it is softer than most other metals in general use, brass is often used in situations where it is important that sparks not be struck, as in fittings and tools around explosive gases.

Because of its low density and atomic mass, beryllium is relatively transparent to X-rays and other forms of ionizing radiation ; therefore, it is the most common window material for X-ray equipment and in particle physics experiments.

Because of the development of themes in the book of Malachi, most scholars assign it to a position between Haggai and Zechariah, slightly before Nehemiah came to Jerusalem in 445 BCE.

Because of the pen's reliance on gravity to coat the ball with ink, most ballpoint pens cannot be used to write upside down.

Because most bioactive compounds are chiral, many pharmaceuticals are produced by enantioselective catalysis ( catalytic asymmetric synthesis ).

Because of the Jews ' rejection of Jesus, Jewish sovereignty over the promised earthly kingdom of Jerusalem and Palestine was postponed from the time of Christ's first coming until prior to or just after his Second Coming when most or all Jews will embrace him.

Because most common ceramics are crystalline, the definition of ceramic is often restricted to inorganic crystalline materials, as opposed to the noncrystalline glasses.

Because of these differences, corporate lawyers are often consulted in an effort to determine the most appropriate or advantageous state in which to incorporate, and a majority of public companies in the U. S. are Delaware corporations.

Because of their immobility, most Ballistas were constructed on site following a siege assessment by the commanding military officer.

Because of the hot, dry conditions that exist in the California summer and fall, chaparral is one of the most fire-prone plant communities in North America.

Because of this intimate contact between the player's hand and the production of sound, the clavichord has been referred to as the most intimate of keyboard instruments.

Because this internal 1571 does not have an unused 8-bit input / output port on any chip, unlike most other Commodore drives, it is not possible to install a parallel cable in this drive, such as that used by SpeedDOS, Dolphin DOS and some other fast third-party Commodore DOS replacements.

Because most congregations call themselves " Christian Churches ," the chalice has become a simple way to identify Disciples of Christ Churches through signage, letterhead, and other forms of publicity.

Because most of these viruses do not appear to be related or are only distantly related to known viruses additional taxa will be created for these.

Because of its use to write the Hindi language, Devangari is one of the most used and adopted writing systems in the world.

Because a high-level language is a practical requirement for developing the most complex programs, functionalism implies that a non-reductive physicalism would offer a similar advantage over a strictly eliminative materialism.

Because the DIX proposal was most technically complete and because of the speedy action taken by ECMA which decisively contributed to the conciliation of opinions within IEEE, the IEEE 802. 3 CSMA / CD standard was approved in December 1982.

Because most malignant cells rely on the activity of the protein telomerase for their immortality, it has been proposed that a drug that inactivates telomerase might be effective against a broad spectrum of malignancies.