Combined Technical (NG) • 2017 • Technical Paper-II
In superconductor MRI equipments, the required critical temperature in cryostat is maintained by using
A)
Titanium
B)
Helium
C)
Sulfur
D)
Carbon dioxide
Liquid helium is used to maintain the cryogenic temperature needed for superconducting magnets.
Combined Technical (NG) • 2017 • Technical Paper-II
Enteroclysis is an investigation of
A)
Esophagus
B)
Small Bowel
C)
Large bowel
D)
Hepato-biliary tree
Enteroclysis is a contrast examination of the small bowel, especially the jejunum and ileum.
Combined Technical (NG) • 2017 • Technical Paper-II
Which of the following is not a part of the gantry in CT Scan machines
A)
Tube
B)
Patient couch
C)
Workstation
D)
Detector array
The workstation is outside the gantry; the gantry houses the tube, detectors, and patient positioning components.
Combined Technical (NG) • 2017 • Technical Paper-II
In the fourth generation type of CT scanners
A)
Tube and Detector do not rotate
B)
Both Tube and detector rotate
C)
Only the tube rotates
D)
Only detector rotates
Fourth-generation CT uses a stationary detector ring while the X-ray tube rotates.
Combined Technical (NG) • 2017 • Technical Paper-II
Which of the following is a wrong statement for Computed Radiography systems:
A)
Europium is the activator element
B)
Image reading is performed using laser
C)
Photo stimulable phosphor is silver halide
D)
Cassettes are used.
CR uses BaFBr:Eu photostimulable phosphor, not silver halide; europium activator and laser reading are true, cassettes used.
Combined Technical (NG) • 2017 • Technical Paper-II
To perform CT of the ankle joint the patient position will be
A)
Head First Supine (HFS)
B)
Head First Prone (HFP)
C)
Feet First Supine (FFS)
D)
Feet First Prone (FFP)
The feet-first supine position is commonly used for CT of the ankle/lower extremity.
Combined Technical (NG) • 2017 • Technical Paper-II
For screening of Breasts in young women below the age of 30 years the preferred investigation is
A)
Sonomammography
B)
Two view film screen mammography
C)
Ductography
D)
CT mammography
Young women <30 dense breasts + radiation sensitivity => ultrasound/sonomammography preferred over mammography.
Combined Technical (NG) • 2017 • Technical Paper-II
Windowing is a method used for
A)
Image acquisition
B)
Image display
C)
Image reconstruction
D)
None of these
Window width and level adjust how CT attenuation values are displayed as grayscale.
Combined Technical (NG) • 2017 • Technical Paper-II
In CAT Scan – the A stands for
A)
American
B)
Axial
C)
Atlas
D)
Alternative
In the historical term CAT, the A refers to axial.
Combined Technical (NG) • 2017 • Technical Paper-II
Non-ionic dimmers have a iodine to particle ratio of
A)
3:1
B)
3:2
C)
5:2
D)
6:1
Non-ionic dimers (iodixanol, Visipaque) 6 iodine atoms per 1 particle => iso-osmolar ratio 6:1.
Combined Technical (NG) • 2017 • Technical Paper-II
Exhocardiography is examination of
A)
Heart
B)
Lungs
C)
Liver
D)
All of these
Echocardiography is an ultrasound examination of the heart.
Combined Technical (NG) • 2017 • Technical Paper-II
CCD means:
A)
Charged Couple Detector
B)
Continuous Charged Detector
C)
Conventional charged Device
D)
Continuous Conventional Device
CCD stands for charge-coupled device; the listed option is the intended abbreviation.
Combined Technical (NG) • 2017 • Technical Paper-II
MRU is an investigation of
A)
Heart
B)
Kidneys
C)
Liver
D)
Lungs
MR urography (MRU) evaluates the urinary tract, especially the kidneys and ureters.
Combined Technical (NG) • 2017 • Technical Paper-II
Slip ring technology is used in
A)
Conventional CT scanners
B)
Axial third generation CT scanners
C)
Spiral CT scanners
D)
None of these
Slip-ring technology enables continuous rotation and is fundamental to spiral/helical CT.
Combined Technical (NG) • 2017 • Technical Paper-II
Field strength of MRI magnets is measured using which unit
A)
Roentgen
B)
Nikol
C)
Sievert
D)
Tesla
MRI magnetic field strength is measured in tesla.
Combined Technical (NG) • 2017 • Technical Paper-II
In CT Brain – hemorrhage or collection between the pia and arachnoid membrane will be
A)
Extra-Dural collection
B)
Sub-Dural collection
C)
Sub-Arachnoid collection
D)
Intra-parenchymal collection
Blood between pia and arachnoid lies in the subarachnoid space.
Combined Technical (NG) • 2017 • Technical Paper-II
Full form of PET is
A)
Positron Emission Tomography
B)
Positive Excitation Tomography
C)
Positive Emission Test
D)
Positron Emission Test
PET stands for positron emission tomography.
Combined Technical (NG) • 2017 • Technical Paper-II
In wide angle tomography the tomographic arc is usually
A)
5-10 degrees
B)
10-50 degrees
C)
200-220 degrees
D)
0-5 degrees
Wide-angle tomography generally uses a tomographic arc in the broad 10–50° range.
Combined Technical (NG) • 2017 • Technical Paper-II
For performing CT of the abdomen we need to take tomogram in which position
A)
Axial and Lateral
B)
Coronal and Axial
C)
Lateral and Oblique
D)
Oblique and coronal
Routine CT acquisition of the abdomen is based on axial data, with coronal reformats commonly used as well.
Combined Technical (NG) • 2017 • Technical Paper-II
The Nobel prize for medicine in 1979 for discovery of CT Scan was won by
A)
Godfrey Hounsefield
B)
Alan Cormack
C)
Both (a) & (b)
D)
None of these
The 1979 Nobel Prize in Physiology or Medicine for CT was shared by Godfrey Hounsfield and Allan Cormack.
Combined Technical (NG) • 2017 • Technical Paper-II
Grids used in Mammography is made up of
A)
Lead
B)
Iron
C)
Carbon
D)
Platinum
Mammography grids use lead strips to reduce scatter radiation.
Combined Technical (NG) • 2017 • Technical Paper-II
Endoscopic Retrograge Cholangio Pancreatography (ERCP) is done to assess
A)
Biliary tract
B)
Alimentary tract
C)
Gall Bladder
D)
Liver
ERCP directly outlines the biliary and pancreatic ducts, so it is primarily used to assess the biliary tract.
Combined Technical (NG) • 2017 • Technical Paper-II
In modern Image Intensifiers the input fluorescent screen is made of
A)
Zinc sulphate
B)
Barium Sulphate
C)
Copper Bromide
D)
Cesium Iodide
Modern image intensifiers use cesium iodide as the input phosphor.
Combined Technical (NG) • 2017 • Technical Paper-II
Full form of LASER
A)
Light after stimulating electron radiation
B)
Light analysis by stimulating electron red
C)
Light amplification by simulated emission of radiation
D)
None of these
LASER = Light Amplification by Stimulated Emission of Radiation (question writes simulated typo).
Combined Technical (NG) • 2017 • Technical Paper-II
In Myelography the intra-thecal contrast injection is injected into which space:
A)
Extra-dural
B)
Intra-medullary
C)
Sub-dural
D)
Sub-arachnoid
In myelography, contrast is introduced into the subarachnoid space around the spinal cord.
