Chaitanya Ahuja

Case Report: Varyingand Unique Symptomatic Presentations of Congenital Intrahepatic Portosystemic Venous Shunts

Christopher Stevens, Eric Wallace, Chaitanya Ahuja

Background and Clinical Significance: Intrahepatic portosystemic venous shunts (IPSVSs) are rare hepatic vascular malformations that occur when there is an abnormal communication between the hepatic and portal veins. IPSVSs can be acquired or congenital, with the latter being the most common. Case …

us (code pays fourni par la source)

Comparative Analysis of the LOBO Device and Coils for Proximal Splenic Artery Embolization: A Multi-Institutional Retrospective Study

Gloria Salazar, Harrison Bieber, Johannes L. du Pisane, Roshan Valentine et autres

us (code pays fourni par la source)

Comparative Analysis of the LOBO Device and Coils for Proximal Splenic Artery Embolization: A Multi-Institutional Retrospective Study

Roshan Valentine, Massoud Allahyari, Johannes L. Du Pisane, Chaitanya Ahuja et autres

PURPOSE: To evaluate the technical and clinical efficacy of the low-profile braided occluder (LOBO) device for proximal splenic artery embolization (SAE) and compare its performance with conventional coil embolization. MATERIALS AND METHODS: This retrospective multi-institutional study included 44 consecutive patients who underwent …

us, gd (code pays fourni par la source)

Complex port removal: balloon-assisted retrieval of retained intravascular catheters – a technical note

Nicholas Thomas, Coplen D. Johnson, Christopher Μ. Stevens, Joseph Eskew et autres

PURPOSE: Balloon dilatation has remained relatively underutilized despite its emerging potential for hemodialysis catheter removal. This case series revisits balloon-assisted retrieval to showcase its effectiveness in retrieving long-term port-a-caths complicated by fibrotic encapsulation, calcification, and stenosis. MATERIALS & METHODS: Endoluminal balloon-assisted retrieval …

us (code pays fourni par la source)

Think Then Embed: Generative Context Improves Multimodal Embedding

Xuanming Cui, Jianpeng Cheng, Hong-You Chen, Satya Narayan Shukla et autres

There is a growing interest in Universal Multimodal Embeddings (UME), where models are required to generate task-specific representations. While recent studies show that Multimodal Large Language Models (MLLMs) perform well on such tasks, they treat MLLMs solely as encoders, overlooking their generative …

The evolution of percutaneous abdominal abscess drainage: A review

Christopher Μ. Stevens, D.A. Scott, Prerana Ramesh, Amanda R Ragland et autres

Abdominal abscesses are commonly treated using percutaneous abscesses drainage (PAD). Despite PAD becoming commonplace in clinical practice, there are still unanswered questions and absent formal guidelines regarding its use. This narrative review discusses the evolution and different features of PAD, including the …

us (code pays fourni par la source)

A Simple and Effective Reinforcement Learning Method for Text-to-Image Diffusion Fine-tuning

Shashank Gupta, Chaitanya Ahuja, Tsung‐Yu Lin, Sreya Dutta Roy et autres

Reinforcement learning (RL)-based fine-tuning has emerged as a powerful approach for aligning diffusion models with black-box objectives. Proximal policy optimization (PPO) is a popular choice of method for policy optimization. While effective in terms of performance and sample complexity, PPO is highly …

Renal Ewing sarcoma with extensive metastasis diagnosed via pulmonary thrombus

Sudeep R. Shah, Eric L Wallace, Chaitanya Ahuja

Primary Ewing sarcoma of the kidney (ESK) is a rare and aggressive malignancy often misdiagnosed as renal cell carcinoma (RCC) due to non-specific radiological features. Accurate diagnosis requires histology, immunohistochemistry (IHC) and molecular studies. We report the case of a female in …

us (code pays fourni par la source)

Our Experience with the Low-Profile Braided Occluder: A Case Series of Splenic Artery Embolization in Three Trauma Patients

Christopher A. Stevens, Chintan Mehta, D.A. Scott, Chaitanya Ahuja et autres

The spleen is the most injured intra-abdominal organ, with splenic injuries constituting 42 to 49% of all abdominal injuries. Due to this vulnerability and the fact that splenic ruptures can potentially result in life-threatening hemorrhage, finding quick and efficient ways to control …

us (code pays fourni par la source)

The association between patient age, abscess size, and white blood cell count on duration of catheter stay for percutaneous abscess drainage of abdominal abscesses

Christopher A. Stevens, Chintan Mehta, D.A. Scott, Prerana Ramesh et autres

OBJECTIVE: Knowing factors that impact catheter stay duration is important since removing drainage catheters too early or late can have significant consequences. We present a single center retrospective study that analyzes multiple variables, including abscess size, white blood cell count, and patient …

us (code pays fourni par la source)

Retrieval of an inferior vena cava Greenfield filter 34 years after insertion

Amanda R Ragland, Christopher A. Stevens, N. Kasturi Bai, Chaitanya Ahuja et autres

Inferior vena cava (IVC) filters are engineered medical devices deployed in the IVC primarily to prevent a pulmonary embolism from occurring. In this article, we present a case of an IVC filter that was successfully retrieved from a patient after being in …

us (code pays fourni par la source)

Lecture Presentations Multimodal Dataset: Towards Understanding Multimodality in Educational Videos

Dong Won Lee, Chaitanya Ahuja, Paul Pu Liang, Sanika Natu et autres

Many educational videos use slide presentations, a sequence of visual pages that contain text and figures accompanied by spoken language, which are constructed and presented carefully in order to optimally transfer knowledge to students. Previous studies in multimedia and psychology attribute the …

ru, us (code pays fourni par la source)