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Optimal scan delay depending on contrast material injection duration in abdominal multi-phase computed tomography of pancreas and liver in normal Beagle dogs
Soo-Young Choi, In Lee, Ji-Won Seo, Hyun-Young Park, Ho-Jung Choi, Young-Won Lee 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 4호 15 555-561 (7 pages)
(CT) has been applied for imaging of canine abdominal organs such as the liver, pancreas, vasculature, mesentery and lymph nodes [8,17,21-23,28,33]. To maximize contrast enhancement of the target organ for each phase, contrast-enhanced CT techniques such as fixed scan delay, test bolus, and bolus tracking, which provide information for CT scan timing, have been described for multi-phase CT... for optimal fixed scan delays and diagnostic scan delays associated with the bolus-tracking technique using various contrast material injection durations in canine abdominal multi-phase computed tomography (CT). This study consisted of two experiments employing the crossover method. In experiment 1, three dynamic scans at the porta hepatis were performed using 5, 10 and 15 sec injection durations. In experiment 2, two CT scans consisting of five multi-phase series with different scan delays of 5... -
CT characteristics of normal canine pulmonary arteries and evaluation of optimal contrast delivery methods in CT pulmonary angiography
JooHyunJung, JinHwaChang, JungHeeYoon, MinCheolChoi 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 8 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2007, 제 47권 제 2호 17 247-254 (8 pages)
HC, Schweden F, Schild HH, Piepenburg R, Duber C, Kauczor HU, Renner C, Iversen S, Thelen M. Pulmonary arteries and lung parenchyma in chronic pulmonary embolism: preoperative and posto- perative CT findings. Radiology 1994, 191, 351-357. 22. Teigen CL, Maus TP, Sheedy PF 2nd, Johnson CM, Stanson AW, Welch TJ. Pulmonary embolism: diagnosis with electron-beam CT. Radiology 1993, 188, 839-845. 23.... -
Extensive characterization of feline intra-abdominal adipose-derived mesenchymal stem cells
Hee-Ryang Kim, Jienny Lee, Jeong Su Byeon, Na-Yeon Gu, Jiyun Lee, In-Soo Cho, Sang-Ho Cha 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 3호 6 299-306 (8 pages)
that are highly important in clinical applications of multipotent MSCs [6,21,24,36]. Therefore, in this study, we undertook extensive characterization of MSCs isolated from feline intra-abdominal adipose tissue. In this study, we successfully isolated MSCs from intra- abdominal adipose tissues of six felines. The fAD-MSCs appeared to have the typical fibroblast-like shape associated with... of feline adipose tissue-derived MSCs (fAD-MSCs). Study fAD-MSCs were individually isolated from the intra-abdominal adipose tissues of six felines. The expression levels of cell surface markers and pluripotent markers were evaluated. Next, proliferation capacity was analyzed by performing cumulative population doubling level (CPDL) and doubling time (DT) calculation assays. Differentiation potentials of fAD-MSCs into mesodermal cell lineages were analyzed by examining specific staining and... -
Optimization of scan delay for multi-phase computed tomography by using bolus tracking in normal canine kidney
Hyun Cho, Da-Hae Lee, Ah-Young Cha, Dong-Eun Kim, Dong-Woo Chang, Jihye Choi 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 15 290-295 (6 pages)
Radiology 1995, 196, 445-451. 8. Dyer RB, Munitz HA, Bechtold R, Choplin RH. The abnormal nephrogram. Radiographics 1986, 6, 1039-1063. 9. Fields EL, Robertson ID, Brown JC Jr. Optimization of contrast-enhanced multidetector abdominal computed tomography in sedated canine patients. Vet Radiol Ultrasound 2012, 53, 507-512. 10. Goshima S, Kanematsu M, Nishibori H, Kondo H, Tsuge Y, Yokoyama... (CT) of the kidney was performed three times in each dog with different scan delays after a bolus-tracking trigger of 100 Hounsfield units (HU) of aortic enhancement. Delays were 5, 20, 35, and 50 sec for the first scan, 10, 25, 40, and 55 sec for the second scan, and 15, 30, 45, and 60 sec for the third scan. The renal artery-to-vein contrast difference peaked at 5 sec, and the renal cortex-to-medulla contrast difference peaked at 10 sec. The renal cortex-to-medulla contrast difference... -
Repetitive ultrasonographic assessment of adrenal size and shape changes: a clue for an asymptomatic sex hormone-secreting adenoma
Seunghyeon Yoon, Heejin Oui, Ju-hwan Lee, Kyu-Yeol Son, Kyoung-Oh Cho, Jihye Choi 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 1호 15 105-109 (5 pages)
J Am Vet Med Assoc 2011, 239, 216-221. 10. Norman EJ, Thompson H, Mooney CT. Dynamic adrenal function testing in eight dogs with hyperadrenocorticism associated with adrenocortical neoplasia. Vet Rec 1999, 144, 551-554. 11. Schultz RM, Wisner ER, Johnson EG, MacLeod JS. Contrast-enhanced computed tomography as a preoperative indicator of vascular invasion from adrenal masses in dogs. Vet... Diagnosis of an adrenal tumor without typical clinical signs related to hyperadrenocorticism and elevated alkaline phosphatase is challenging. This report describes a sex hormone-secreting adrenal tumor in a 10-year-old castrated male Shih Tzu evaluated through repetitive ultrasonographic examination. An adrenocorticotropic hormone stimulation test revealed elevated concentrations of androstenedione and 17-hydroxyprogesterone but a normal cortisol concentration. A mass was surgically excised and... -
Non-invasive quantification of hepatic fat content in healthy dogs by using proton magnetic resonance spectroscopy and dual gradient echo magnetic resonance imaging
Francesca Del Chicca, Andrea Schwarz, Dieter Meier, Paula Grest, Annette Liesegang, Patrick R. Kircher 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 14 570-576 (7 pages)
a phased-array anterior coil (dStream body coil solution, 32 channels; Philips Healthcare). Initial transverse cranial abdominal sequences were performed to rule out hepatic morphologic abnormalities by obtaining T2-weighted (turbo spin echo; repetition time, 1,250 msec; echo time, 80 msec; flip angle, 90 o; field of view, 220 mm; voxel size, 0.60 mm × 0.73 mm × 3.00 mm; slice thickness,... The objective of the present study was to describe two non-invasive methods for fat quantification in normal canine liver by using magnetic resonance imaging (MRI) and spectroscopy. Eleven adult beagle dogs were anesthetized and underwent magnetic resonance examination of the cranial abdomen by performing morphologic, modified Dixon (mDixon) dual gradient echo sequence, and proton magnetic resonance spectroscopy (1H MRS) imaging. In addition, ultrasonographic liver examination was performed,... -
Clinical usefulness of post-operative F-fluorodeoxyglucose positron emission tomography-computed tomography in canine hemangiosarcoma
Gahyun Lee, Seong Young Kwon, Kyuyeol Son, Seungjo Park, Ju-hwan Lee, Kyoung-Oh Cho, Jung-Joon Min, Jihye Choi 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 2호 16 257-260 (4 pages)
CT) images. On transverse CT images, the left subcutaneous mass (*) showed heterogeneous enhancement at the arterial phase (A) and the contrast enhancement was persistent and increased at the venous phase (B). On the dorsally reformatted CT image (C), the mass displaced the peritoneum and left hepatic lobes (l) inward, but had smooth margins with no invasion of the abdominal cavity. (D) On the... evaluating recurrent or residual tumors following surgery. CT and F-fluorodeoxyglucose PET-CT were pre- and post-operatively applied to multiple masses in a dog with hemangiosarcoma. The distinction between the left subcutaneous mass and the peritoneum was clarified on pre-operative CT examination, and malignancy was suspected based on PET-CT. A recurrent or residual tumor in the left subcutaneous region was suspected on post-operative PET-CT, and confirmed through histopathologic examination. -
Oral contrast media for computed tomography of canine pancreas
Ji Hye Choi , Jin Hwa Chang , Sun Kyoung Oh , Jung Hee Yoon , 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 5 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2011, 제 51권 제 2호 11 165-169 (5 pages)
computed tomographic images. Vet Clin North Am Small Anim Pract 1993, 23, 417-435. 12. Thompson SE, Raptopoulos V, Sheiman RL, McNicholas MM, Prassopoulos P. Abdominal helical CT: milk as a low-attenuation oral contrast agent. Radiology 1999, 211, 870-875. 13. Winter TC, Ager JD, Nghiem HV, Hill RS, Harrison SD, Freeny PC. Upper gastrointestinal tract and abdomen: water as an orally administered... -
Alpha-Asarone, a Major Component of Acorus gramineus, Attenuates Corticosterone-Induced Anxiety-Like Behaviours via Modulating TrkB Signaling Process
BombiLee, BongjunSur, MijungYeom, InsopShim, HyejungLee, Dae-HyunHahm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.3 1 191-200 (10 pages)
were killed by decapitation one day after behav- ioral measurement. For this, the unanesthetized rats were rapidly decapitated, and blood was quickly collected via the abdominal aorta. The blood samples were centrifuged at 4000 g for 10 min, and serum was collected and stored at 20 o C until use. The CORT concentration was measured by a competitive enzyme-lin ked immunoassay (ELISA) us- ing a... We investigated the anxiolytic-like activity of α-asarone (AAS) from Acorus gramineus in an experimental rat model of anxiety induced by repeated administration of the exogenous stress hormone corticosterone (CORT). The putative anxiolytic effect of AAS was studied in behavioral tests of anxiety, such as the elevated plus maze (EPM) test and the hole-board test (HBT) in rats. For 21 consecutive days, male rats received 50, 100, or 200 mg/kg AAS (i.p.) 30 min prior to a daily injection of CORT.... -
Comparative kinematic gait analysis in young and old Beagle dogs
Malin Lorke, Maray Willen, Karin Lucas, Martin Beyerbach, Patrick Wefstaedt, Hugo Murua Escobar, Ingo Nolte 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 4호 19 521-530 (10 pages)
The irregular enhanced prostatic parenchyma (*) contained multiple cysts and mineralization. Descending colon (arrow) and caudal vena cava (arrowhead) were compressed by the mass. Fig. 2. Post contrast-enhanced CT sagittal (A), transverse (B), and dorsal (C) images. The fluid-attenuated lesion (*) displaced the urinary bladder (UB) and the left kidney. The lesion had continuity (white arrow)... Age-related involution in dogs involves loss of muscle mass and changes in connective tissue and articular cartilage. The aim of this study was to examine whether an age-related influence on joint mobility can be detected in the absence of disease. Five young (mean age 2.0 years) and five old (mean age 10.4 years) healthy and sound Beagle dogs underwent computer-assisted gait analysis during locomotion on a treadmill. Shoulder, elbow, carpal, hip, stifle, and tarsal joint angles including joint...