Publications by authors named "Michael Liou"

BerryPortraits (Phenotyping of Ripening Traits) is open source Python-based image-analysis software that rapidly detects and segments berries and extracts morphometric data on fruit quality traits such as berry color, size, shape, and uniformity. Utilizing the YOLOv8 framework and community-developed, actively-maintained Python libraries such as OpenCV, BerryPortraits software was trained on 512 postharvest images (taken under controlled lighting conditions) of phenotypically diverse cranberry populations (Vaccinium macrocarpon Ait.) from the two largest public cranberry breeding programs in the U.

View Article and Find Full Text PDF

Biennial vegetable crops are challenging to breed due to long breeding cycle times. At the same time, it is important to preserve a strong biennial growth habit, avoiding premature flowering that renders the crop unmarketable. Gene banks carry important genetic variation which may be essential to improve crop resilience, but these collections are underutilized due to lack of characterization for key traits like bolting tendency for biennial vegetable crops.

View Article and Find Full Text PDF

Carrot ( L.) is a high value, nutritious, and colorful crop, but delivering carrots from seed to table can be a struggle for carrot growers. Weed competitive ability is a critical trait for crop success that carrot and its apiaceous relatives often lack owing to their characteristic slow shoot growth and erratic seedling emergence, even among genetically uniform lines.

View Article and Find Full Text PDF

Background: Evidence-based recommendations for antiepileptic drug selection in cats beyond phenobarbital are limited, and additional studies are needed for cats where seizures remain inadequately controlled by administration of phenobarbital alone or for cats that cannot safely receive phenobarbital.

Objective: To compare seizure frequency in cats before and after oral administration of zonisamide and describe adverse clinical or clinicopathologic effects in this cohort.

Animals: Fifty-seven cats with a history of seizures.

View Article and Find Full Text PDF

Biopesticide fungicides are naturally derived compounds that offer protection from plant diseases through various modes of action, including antimicrobial activity and upregulation of defense responses in host plants. These plant protectants provide a sustainable and safe alternative to conventional pesticides in integrated disease management programs and are especially salient in the management of high-risk and economically important diseases such as late blight of tomato and potato, for which host resistance options are limited. In this study, a commercially available biopesticide, EF400 comprised of clove (8.

View Article and Find Full Text PDF

Background: The adaptation of retrograde tibial-pedal access for peripheral angiogram and intervention is limited by the lack of operator experience and concern for small distal vessel injury. This study evaluates the safety of the retrograde tibial-pedal access for peripheral angiogram and intervention in patients with two vessel infra-popliteal artery chronic total occlusions, where the access point is the sole remaining non-occluded infra-popliteal artery.

Methods: A retrospective analysis of 5687 consecutive patients who underwent peripheral angiograms by retrograde tibial-pedal access via the single remaining non-occluded infra-popliteal artery was performed.

View Article and Find Full Text PDF

Objective: The aim of this study is to compare the quality-of-life (QOL) outcomes and the tibio-pedal arterial pressure post-endovascular intervention.

Background: Physiological assessment of peripheral arterial lesions is infrequently performed during endovascular interventions.

Materials And Methods: We retrospectively reviewed all 343 patients with intermittent claudication who underwent an endovascular intervention tibio-pedal artery access from October 2018 to May 2021.

View Article and Find Full Text PDF

We have applied social network analysis (SNA) to data on voluntary cow movement through a sort gate in an automatic milking system to identify pairs of cows that repeatedly passed through a sort gate in close succession (affinity pairs). The SNA was applied to social groups defined by four pens on a dairy farm, each served by an automatic milking system (AMS). Each pen was equipped with an automatic sorting gate that identified when cows voluntarily moved from the resting area to either milking or feeding areas.

View Article and Find Full Text PDF

Objective: We sought to compare the use of transradial peripheral angiography to guide retrograde revascularization of below-the-knee (BTK) lesions using tibiopedal access (TPA).

Background: Tibiopedal retrograde revascularization of BTK lesions is an emerging technique in peripheral interventions.

Methods: We performed an observational cohort study of 194 consecutive adult patients with critical limb ischemia (CLI) who underwent endovascular intervention for BTK diseases using peripheral angiography and primary TPA access with vs without transradial (TR) guidance at 2 centers (New York, USA and Budapest, Hungary).

View Article and Find Full Text PDF

Objective: We sought to use a novel technique to measure the functional hemodynamics of peripheral arterial lesions during endovascular interventions.

Background: Functional hemodynamics has not been thoroughly evaluated during endovascular interventions. The aim of our study is to evaluate the feasibility and the potential benefits of pedal pressures measurements from tibio-pedal access.

View Article and Find Full Text PDF
Article Synopsis
  • Transpedal arterial access (TPA) is becoming a popular method for treating peripheral arterial disease (PAD) because it may offer better patient comfort and fewer complications than the traditional transfemoral approach (TFA).
  • A study of 1460 patients who underwent TPA found that the occurrence of pseudoaneurysms (PSA) related to the access site was very low, at just 0.002%, all occurring in the posterior tibial artery.
  • Treatments for these PSA were successful and uncomplicated, typically involving thrombin injection, highlighting that while rare, PSA from TPA is manageable.
View Article and Find Full Text PDF

Background: Transpedal access is increasingly utilized for peripheral vascular catheterization. There is a paucity of data on the use of radial hemostasis devices as an alternative to manual compression for achievement of hemostasis after this approach.

Objective: To compare safety and efficacy of two hemostasis devices following transpedal catheterization for lower extremity revascularization for peripheral arterial disease.

View Article and Find Full Text PDF

Background: Atherosclerotic disease of the superficial femoral artery (SFA) is frequently seen and can be treated with percutaneous interventions, traditionally via femoral artery access. There are limited reports of transpedal artery access for peripheral artery interventions, but none to date describing routine primary transpedal artery approach for SFA stenting.

Methods: In this preliminary study, we report 4 patients who underwent successful endovascular SFA stenting using a single transpedal artery access via a new ultra-low profile 6 Fr sheath (Glidesheath Slender; Terumo Corporation).

View Article and Find Full Text PDF

Objectives: To provide new strategies and techniques for the successful recanalization of chronic total occlusions (CTOs) with the sole use of the CrossBoss catheter. In addition, some common CTO scenarios are illustrated in detail.

Background: CTOs are one of the most challenging complex coronary lesion subsets to intervene upon.

View Article and Find Full Text PDF

Objectives: To evaluate the use of extension catheters in transradial intervention of complex coronary lesions.

Background: Complex percutaneous coronary intervention (PCI) via transradial approach remains a challenge for many interventionalists, primarily due to the difficulty in obtaining adequate guide catheter support.

Methods: A retrospective case series identified 54 patients who presented for PCI of complex coronary lesions.

View Article and Find Full Text PDF

Coronary angiography is the gold standard for defining obstructive coronary disease. However, radiation exposure remains an unwanted hazard. Patients referred for coronary angiography with abdominal circumference<45 inches and glomerular filtration rate>60 ml/min were randomized to the fluorography (n=25) or cineangiography (n=25) group.

View Article and Find Full Text PDF

Objective: We sought to study the clinical outcomes of bifurcation stenting in patients who presented with stent thrombosis segment elevation myocardial infarction (STEMI).

Background: Patients with STEMI are usually excluded from randomized bifurcation studies. There is limited information for bifurcation stenting in this population.

View Article and Find Full Text PDF

Background: Bifurcation lesions at the time of emergent PCI for STEMI are relatively common. However, there are little data regarding their significance. The objective of this study is to evaluate the impact of bifurcation lesions in the setting of emergent percutaneous coronary intervention (PCI) for ST-segment elevation myocardial infarction (STEMI).

View Article and Find Full Text PDF

Ostial lesions, including aorta-ostial lesions and Medina 001 bifurcation lesions, are known to create difficulty in precise stent placement. There are many techniques used to help in precise ostial stent placement; these include using multiple angiographic views to assist in placement, the use of the Ostial Pro device, the aorta flowing wire technique, Szabo (anchor-wire) techniques, the T-stent and small protrusion (TAP) technique, the cross-over 1-stent technique, and new dedicated ostial stents. In this review, we summarize these different techniques and show that there is no universal technique that allows for perfect ostial stent placement.

View Article and Find Full Text PDF

Objectives: The aim of our study is to assess the feasibility and safety of transradial intervention (TRI) of coronary ostial lesions using the Szabo technique.

Background: When performing TRI of coronary ostial lesions, precise stent positioning is of paramount importance. TRI has experienced increasing popularity in the U.

View Article and Find Full Text PDF

Transradial percutaneous coronary intervention (PCI) has been associated with a lower incidence of major access site related complications. With the increased implementation of transradial approach in complex PCI, stent dislodgement is unavoidable in any interventionalists' career. Stent retrieval is different in a transradial approach as compared to a transfemoral approach because of the former's smaller arterial size.

View Article and Find Full Text PDF

Objective: The aim of our study is to assess the feasibility, safety, and rate of radial artery occlusion (RAO) using 7F sheathless guiding catheter in a large population undergoing transradial intervention (TRI).

Background: There is a frequent need for large bore guiding catheter to perform complex coronary interventions. Hydrophilic sheathless guiding catheters are not available in the US, therefore, we present the results of a multicenter study using the modified sheathless technique and readily available catheters.

View Article and Find Full Text PDF

Background: The sheathless approach to transradial percutaneous coronary intervention (PCI) has recently gained popularity among interventionalists. However, technical problems and lack of approved equipment in the United States has limited its applicability. We describe a new approach, balloon-assisted sheathless transradial intervention (BASTI) that can ease the use of 5 Fr sheathless guiding catheters and decrease complication rates.

View Article and Find Full Text PDF

Transradial catheterization (TRC) has been associated with a lower incidence of major access site related complications as compared to the transfemoral approach. With the increased adoption of transradial access, it is essential to understand the potential major and minor complications of TRC. The most common complication is asymptomatic radial artery occlusion, which rarely leads to clinical events, owing to the dual collateral perfusion of the hand.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionvvf09q8nc1ci5gvocerhtcn39vodp7mn): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once