Term
| The SMA supplies blood to which abdominal organs? |
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Definition
pancreatic head
jejunum
ileum |
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Term
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Definition
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Term
| the opening thru which the descending aorta passes thru the diaphragm |
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Definition
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Term
virtual colon prep
old and new |
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Definition
old- polyethylene glycol based
new- oral hydration and cathartic |
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Term
| superior vena cava divides into what arteries |
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Definition
| lt and rt brachiocephalic |
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Term
| anatomy included in mediastinum |
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Definition
| trachea, main stem bronchi, aorta, vena cava, thymus, esophagus, lymph nodes, heart |
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Term
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Definition
upper anterior mediastinum
matures the T-lymphocytes
grows until puberty then shrinks at age 40 |
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Term
| trachea begins at which vert level |
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Definition
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Term
| first branch off the ascending aorta |
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Definition
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Term
| superior surface of the aorta gives rise to what 3 arteries? |
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Definition
right brachiocephalic
left common carotid
left subclavian |
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Term
| _____ _____ carries venous blood to the lungs from the rt ventricle |
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Definition
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Term
| ___ ___ carry oxygenated blood from the lungs to the left atrium |
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Definition
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Term
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Definition
| rt posterior intercostal veins, the hemiazygos and accessory hemiazygos veins, and esophageal and mediastinal veins |
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Term
| longer rotation time= ___ mAs possible and __ patient motion |
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Definition
| ^ mAs and ^ motion= loss of image quality |
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Term
| shorter rotation time= ___ patient motion |
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Definition
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Term
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Definition
| fluid accumulation between layers of lung |
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Term
| parietal and visceral layers. which is outer layer |
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Definition
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Term
| each lung has how many lobes |
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Definition
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Term
| reasons to do High resolution chest |
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Definition
diffuse pulmonary disease
suspected bronchiectasis, pulmonary fibrosis, sarcoidosis and pneumonitis
asbestosis
air trapping
extent of emphysema |
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Term
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Definition
| main bronchus-- bronchioles-- terminal bronchioles-- alveoli--acinus |
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Term
| lung hila contains the following structures |
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Definition
bronchus intermediate
pulmonary artery
sup. and inf. pulmonary veins
bronchial arteries and veins
hilar lymph nodes
nerves |
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Term
| signs on high res that may indicate the presence of chronic infiltrative lung disease |
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Definition
| presence of thickened interlobular septa, irregular linear attenuation, cystic airspaces, small nodules, ground-glass attenuation, and parenchymal consolidation |
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Term
| asbestos exposure can cause |
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Definition
| pleural effusion or calcification or lung CA |
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Term
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Definition
| retention of excess gas during expiration. caused by emphysema, asthma, infiltrative lung disease |
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Term
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Definition
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Term
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Definition
| blood tears thru the inner lining (intima) of the aorta and travels btwn layers of the aortic wall |
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Term
| risk factors for dissection |
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Definition
athersclerosis
HTN
traumatic injury |
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Term
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Definition
| weakening and abnormal widening of vessel wall |
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Term
| risk factors for aneurysm |
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Definition
athersclerosis
HTN
trauma
Marfan's sydrome |
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Term
| valve btwn rt atrium and rt ventricle |
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Definition
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Term
| valve that pushes blood from lt atrium to lt ventricle |
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Definition
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Term
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Definition
| SVC and IVC to rt atrium>> rt ventricle>> pulmonary artery>> lungs>> pulm veins>> lt atrium>> lt ventricle>> aorta |
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Term
| __ __ __ arises from the rt anterior aortic sinus and provides most of the blood to RT side of heart |
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Definition
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Term
| left main coronary artery arises from the left anterior aortic sinus and supplies blood to |
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Definition
| the anterior, apical, and lateral alls of the left ventricle |
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Term
| ____ follows the left part of coronary sulcus and provides blood to the posterior and inferior walls of the lt ventricle |
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Definition
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Term
| 2 techniques used in cardiac imaging to reduce motion artifacts |
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Definition
prospective triggering technique
retrospective gating |
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Term
| prospective triggering technique |
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Definition
| a trigger signal is derived from the pt's EKG that estimates the RR interval based on the current RR |
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Term
| pros and cons of prospective triggering technique |
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Definition
+ min rad exp, shorter scan times
- lack of volume acquisition and need for large slices to reduce scan times= poor spatial resolution |
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Term
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Definition
ECG signal and start of data acquisition are recorded with the data image with continuous acquisition.
images are reviewed off-line and recon'ed retrospecitvely. |
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Term
| pro of retrospective gating |
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Definition
| ^ spatial resolution and 3D recon |
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Term
| 2 forms of coronary artery eval by CT |
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Definition
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Term
| how does calcium scoring work |
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Definition
scanner localizes and quantifies the presence and amnt of calcium in coronary arteries.
computer measures area of cal and total all areas |
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Term
| name of the score used in calcium scoring |
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Definition
Agatston
^ Agatston score= ^ risk of CAD |
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Term
| virtual colonoscopies have a high senstivity __% for detecting pt's with colon polyps >10mm. |
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Definition
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Term
| why scan a pt prone for a stone study? |
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Definition
| for suspected renal calc lodged in distal ureter or passed into bladder |
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Term
| what attaches the stomach to the liver and pancreas? |
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Definition
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Term
| portion of the peritoneal cavity located anterior to all of the bowel loops |
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Definition
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Term
| duodenaljejunal flexure contains what ligament |
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Definition
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Term
| CT colon visualizes what of the colon and a con of it |
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Definition
| mucosal surface of the colon.. cant be bx'ed during the procedure and pt receives radiation |
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Term
| some functions of the liver |
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Definition
bile production
vitamin secretion
hemoglobin processing
enzyme manufacturing
toxin filtering
metabolism of drugs |
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Term
| ___ lobe forms the floor for porta hepatis |
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Definition
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Term
| ___ lobe is a portion of the left lobe |
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Definition
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Term
| separates ant and post liver |
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Definition
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Term
| hepatic artery is a branch of the celiac trunk and supplies __% of the blood to the liver |
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Definition
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Term
| remaining __% of the liver's blood supply comes from the portal vein, which is comprised of the SMV and splenic vein |
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Definition
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Term
| ___ ___ transports all materials absorbed thru the GI tract- nutrient or toxin |
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Definition
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Term
| porta hepatis houses which structures |
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Definition
proper hepatic artery
main portal vein
common hepatic duct |
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Term
| primary liver tumors are supplied by |
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Definition
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Term
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Definition
masses seen on u/s
r/o hepatocellular carcinoma in pts with cirrohosis
mets
trauma
eval liver donors |
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Term
| hypovascular tumors enhance during ___ ___ phase |
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Definition
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Term
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Definition
| produce insulin and secrete digestive enzymes that are produced and emptied into the pancreatic duct |
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Term
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Definition
| Islet cells/ Islet of Langerhans |
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Term
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Definition
aiding in fat digestion
aiding in removal of toxins from the liver |
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Term
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Definition
tissue of spleen
masses of lymphoid tissue |
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Term
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Definition
tissue of spleen
creates new RBS and destroys old ones |
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Term
| splenic artery serves what organs |
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Definition
| spleen stomach and pancreas |
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Term
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Definition
surrounds renal sinus
consists of outer cortex and a central medulla |
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Term
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Definition
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Term
| consists of tubules where the filtration takes place |
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Definition
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