VRU 2008 Flashcards
J. Jones et al: AVJR: The mean foraminal area and the LS angle were significantly smaller or larger in extended vs flexed legs?
Extended is smaller
J. Jones et al: AVJR: The percentage of change in the LS area or LS angle was significant or not significant in dogs with vs without clinical signs?
NOT significant.
Mai et al: Dual phase CTA dogs with insulinoma, what was the lesson here?
Two dogs were found to have strong enhancement during the arterial phase but not in any other phase… DOING DUAL PHASE with arterial phase is important.
Bowlus et al: MRI of the femoral head: What was the big difference between MRI characteristics of avascular necrosis vs normal dogs?
Avascular necrosis is HETEROGENEOUS on T1, T2 and post contrast
Pic: the left is normal.
Bowlus et al: MRI of the femoral head: What is the normal intensity of the femoral head and neck?
Uniform high intensity on T1 and T2 compared to muscle
Uniform or no enhancement on post contrast
Marolf et al: Comparison of CR and conventional rads in detection of pneumoperitoneum: What is the smallest volume of air consistently seen on CR?
0.5ml
Marolf et al: Comparison of CR and conventional rads in detection of pneumoperitoneum: Was there a stat difference between conventional radiographs and CR in detecting air?
NO difference.
Marolf et al: Comparison of CR and conventional rads in detection of pneumoperitoneum: What was the best projection to detect free air on CR?
Laterals
Konar et al: MRI empty sella; What percentage of hypophyseal tissue filling is considered normal vs abnormal?
>50% is normal
30-50% is partial empty
<30% is empty.
Konar et al: MRI empty sella; One dog showed signs of what with this condition?
central hyperadrenocorticism.
Konar et al: MRI empty sella; What percentage of dogs had this and what type of dog was it?
3% of dogs
All small dogs!
Konar et al: MRI empty sella; Empty sella is defined as?
Herniation of the subarachnoidal space into the sella turcica with invisible or reduced hypophyseal size.
Taeymans et al: CT features of the normal thyroid gland; what is the normal pre and post contrast HUs of the thyroid?
- 5 Pre dogs —- 123 HU in cats
- 0 Post
Taeymans et al: CT features of the normal thyroid gland; Did the mean volume increase or decrease post contrast?
Increased by 40mm3
Taeymans et al: CT features of the normal thyroid gland; Where are 90% of the thyroids located?
DORSOLATERAL TO THE TRACHEA
Between the 1st and 8th tracheal rings.
Taeymans et al: CT features of the normal thyroid gland; what were the characteristics of the parathyroid glands?
Don’t know… can’t see them on CT.
Taeymans et al: CT features of the normal thyroid gland; What thyroid gland is more cranial? Is the isthmus seen easily?
Right is more cranial
No.. can’t see the isthmus
Taeymans et al: MRI features of the normal thyroid gland; Where is the largest diameter of the thyroid compared to the cervical vertebrae?
C2/C3
Taeymans et al: MRI features of the normal thyroid gland; Where is the thyroid commonly located?
Dorsolatereal.
Taeymans et al: MRI features of the normal thyroid gland; The thyroid is commonly how much wider than the common carotid?
2x.
Taeymans et al: MRI features of the normal thyroid gland; Can the parathyroid glands be seen? Is the isthmus seen easily?
No and no
Taeymans et al: MRI features of the normal thyroid gland; What was the normal intensity in thyroids? T2, T1, PD and GRE?
T2 - Between muscle and fat
T1 - Muscle
T2* - Higher than CSF
PD- Isointense to fat.
Most was heterogeneous.
Stefani et al: MRI features of spinal empyema in dogs: What is the contrast pattern?
Peripheral or homogeneous.
Stefani et al: MRI features of spinal empyema in dogs: signal increase where in the associated spinal cord was see in all dogs?
Grey matter.
Stefani et al: MRI features of spinal empyema in dogs: What disease is commonly associated with empyema?
Discospondylitis.
Stefani et al: MRI features of spinal empyema in dogs: What was the most common site?
Caudal TL spine.
Schultz et al: Grass awns in dogs and cats: What are the thoracic radiographic findings of a grass awn?
Focal pulmonary interstitial to alveolar opacities (26/35) - caudal AND accessary (pic) lung lobes.
Pneumothorax (9/35)
Pleural effusion (8/35)
Pleural thickening (7/35)
Schultz et al: Grass awns in dogs and cats: What was the most common presentation?
Lab or English pointer
<5yo
Coughing or hyperthermia.
Schultz et al: Grass awns in dogs and cats: CT findings of a grass awn?
Alveolar pulmonary opacities (RIGHT CAUDAL) 12/14 - Accessary lung lobe too
Pleural thickening 11/14
Lymphadenopathy
Soft tissue tracking
Pneumo
Effusion
4/14 were able to find the FB
Rossi et al: CEUS (Sonovue) for splenic lesions: What was associated with malignancy?
Hypoechogenicity in the wash-outt phase COMBINED with tortuous feeding vessels.
Rossi et al: CEUS (Sonovue) for splenic lesions: What was characteristic of the benign lesions?
Same perfusion pattern as the surrounding spleen.
Rossi et al: CEUS (Sonovue) for splenic lesions: What was the characteristic pattern for hemangio and lymphoma.. they are different from one another.
Lymphoma - early wash in and wash out with a HONEYCOMB pattern
Hemangio - large nonperfused masses with hypervascular periphery.
Labruyere et al: US evaluation vitreous in normal dogs; Vitreous degeneration is more common in what age and sex of dog?
>7 years - 6.7odds ratio
females = 3.6 odds ratio
Labruyere et al: US evaluation vitreous in normal dogs; what is the percentage of vitreous degeneration noted in this population?
20% … a lot higher than thought for normal dogs.
Pic: the diffuse one is likely asteroid hyalosis while the one with the ventrally located stuff is likely syneresis.
Labruyere et al: US evaluation vitreous in normal dogs; What are the two types of vitreous degeneration and short pathophys?
Syneresis - liquefaction of the vitreous (gel like structure) caused by loss of hyaluronic acid which serves as a barrier for toxins and waste products. The increase in toxins and waste causes liquefaction.
Asteroid hyalosis -calcium phospholipids occurs due to chronic inflammation
Labruyere et al: US evaluation vitreous in normal dogs; What is more sensitive for mild vitreous degeneration..US or ophthalmoscopy?
US by far.
Schreurs et al: US abdominal LN normal cat: What was the easiest lymph nodes that were seen? Hardest?
90-100% were the medial iliac and jejunal
10-40% renal, gastric, sacral and caudal mesenteric
Hock et al: Post morteum cat rad: What is the most common 12hr post death changes seen in the abdomen?
Gas in the liver and gas in the vasculature of the abdomen
Wigger et al: femoral head and neck conformation influence on hip dysplasia in GSD: What is a broomstick-like femoral head and neck formation and what influence does it have on the presence of hip dysplasia?
Broom stick… see pic.
No influence on precentage of dysplasia.
Most common breeds for insulinomas?
Large breed
Irish setter, boxer, GSD
Whatmough et al: Influence positiong has on CC stifle joint space in dogs: Which joint space was larger in normal dogs?
The lateral aspect by 1.0cm
Whatmough et al: Influence positiong has on CC stifle joint space in dogs: What influence does rotation, x-ray decentering and tension have on the joint space?
Medial rotation increased the lateral joint
Lateral rotation decreases the lateral joint
X-Ray decentering = No influence
Tension = increases both lateral and medial jt space
Think about positioning in extended position… it all widens the joint.
Whatmough et al: Influence positiong has on CC stifle joint space in dogs: What does having a CCL or medial menisectomy do to the joint space?
CCL slightly increases
Meniscectomy slightly decreases.
Whatmough et al: Influence positiong has on CC stifle joint space in dogs: What is the end story of this paper?
The influence different factors have on the stifle joint does are not as big as the variation between joints in normal dogs… THEREFORE probably not clinically relevant.
Gaschen et al: US findings in chronic enteropathies; What is the best parameter for detecting inflammatory bowel disease in dogs?
Mucosal echogenicity and not wall thickness.
Barberet et al: US of abdominal organs; What organs were seen the most and the least?
Adrenals and right pancreas = 87-91%
Least = Plyorus, papilla and left limb of the pancreas (42-64%)
Barberet et al: US of abdominal organs; What influenced the visualization the most?
GI ingesta and weight of the dog.
Keppie et al: Objective sand colic: What parameters were used for objective scoring?
Location (cranioventral worse)
Numberr of accumulations (the worst)
Opacity (As opaque as the rib or vertebral body)
Homogeneity (homogeneous was the worst)
Thickness of sand by rib width (>5 was the worst)
Length of sand by rib width (>20 was the worst)
Keppie et al: Objective sand colic: What was the cutoff for significant scores ie it is probably causing an obstruction?
Score of 7 - 83% chance it was a true sand colic
Hahn et al: Cervical vertebral malformation sag ratios: What is the difference between intervertebral and intravertebral sagital ratios?
See pic