Long-term outcome of percutaneous transhepatic balloon angioplasty for portal vein stenosis after pediatric living donor liver transplantation: a single institute's …

M Yabuta, T Shibata, T Shibata, K Shinozuka… - Journal of Vascular and …, 2014 - Elsevier
Purpose To evaluate retrospectively the long-term outcomes of percutaneous transhepatic
balloon angioplasty performed for portal vein stenosis (PVS) after pediatric living donor liver …

Long-term outcome of percutaneous interventions for hepatic venous outflow obstruction after pediatric living donor liver transplantation: experience from a single …

M Yabuta, T Shibata, T Shibata, K Shinozuka… - Journal of Vascular and …, 2013 - Elsevier
Purpose To evaluate retrospectively the long-term outcome of percutaneous interventions
for hepatic venous outflow obstruction (HVOO) occurring after pediatric living donor liver …

[PDF][PDF] A simple proof of Carmichael's theorem on primitive divisors

M Yabuta - Fibonacci Quarterly, 2001 - fq.math.ca
For arbitrary positive integer «, numbers of the form Dn={an-pn) l {a-fJ) are called the Lucas
numbers, where a and fi are distinct roots of the polynomial f (z)= z2-Lz+ M, and L and Mare …

[HTML][HTML] Computer-aided diagnosis of chest X-ray for COVID-19 diagnosis in external validation study by radiologists with and without deep learning system

A Miyazaki, K Ikejima, M Nishio, M Yabuta, H Matsuo… - Scientific Reports, 2023 - nature.com
To evaluate the diagnostic performance of our deep learning (DL) model of COVID-19 and
investigate whether the diagnostic performance of radiologists was improved by referring to …

Long-term outcome of percutaneous biliary interventions for biliary anastomotic stricture in pediatric patients after living donor liver transplantation with Roux-en-Y …

R Imamine, T Shibata, M Yabuta, K Shinozuka… - Journal of Vascular and …, 2015 - Elsevier
Purpose To retrospectively evaluate long-term outcomes of percutaneous transhepatic
biliary drainage (PTBD) followed by balloon dilation and placement of an internal drainage …

Primitive divisors of certain elliptic divisibility sequences

P Voutier, M Yabuta - arXiv preprint arXiv:1009.0872, 2010 - arxiv.org
Let $ P $ be a non-torsion point on the elliptic curve $ E_ {a}: y^{2}= x^{3}+ ax $. We show
that if $ a $ is fourth-power-free and either $ n> 2$ is even or $ n> 1$ is odd with $ x (P)< 0 …

LANG'S CONJECTURE AND SHARP HEIGHT ESTIMATES FOR THE ELLIPTIC CURVES y2 = x3 + ax

P Voutier, M Yabuta - International Journal of Number Theory, 2013 - World Scientific
For elliptic curves given by the equation Ea: y2= x3+ ax, we establish the best-possible
version of Lang's conjecture on the lower bound for the canonical height of non-torsion …

[HTML][HTML] Retrograde endosonography-guided hepaticojejunostomy after failed rendezvous in a patient with Child's resection

T Okamoto, K Nakamura, M Yabuta, K Fukuda - Endoscopy, 2022 - thieme-connect.com
Percutaneous or endoscopic ultrasoundguided hepaticojejunostomy (EUS-HJS) is
infrequently used for antegrade stent placement or dilation for subsequent endoscopic …

Retrospective comparison of clinical outcomes of ultrasound-guided percutaneous cholecystostomy in patients with and without coagulopathy: a single center's …

H Yamahata, M Yabuta, M Rahman - Japanese Journal of Radiology, 2023 - Springer
Purpose To compare the complication rate and clinical outcomes for percutaneous
cholecystostomy (PC) in patients with or without coagulopathy. Materials and methods We …

Primitive divisors of certain elliptic divisibility sequences

M Yabuta - Experimental Mathematics, 2009 - Taylor & Francis
Let E: y 2= x 3+ D be an elliptic curve, where D is an integer that contains no primes p with 6|
ord p D. For a nontorsion rational point P on E, write x (nP)= A n (P)/B 2 n (P) in lowest terms …