Larry Nguyen

Ultrasound
ISO certification: Why it's important to you
While medical device companies often tout International Organization for Standardization (ISO) certifications, potential customers may not understand what these certifications actually prove. But a little due diligence can clear up any uncertainty, writes Summit Imaging CEO Larry Nguyen.
October 8, 2015
2015 10 08 15 34 19 856 Nguyen Larry 200
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CT
Early CTA leads to improved stroke outcomes for patients with BCVI
Early CTA is linked to reduced stroke, decreased complications, and reduced intensive care unit length of stay.
Liver Cancer 400
Interventional
Most histotripsy procedures used for metastatic disease treatment
Radiologist Computer Screen X Ray
Administration
Imaging turnaround times continued to climb in 2024
(A) Free-response receiver operating characteristic (FROC) curve for DBT-DINO and DINOv2 (Meta AI) on the detection task. DINOv2 achieved higher sensitivity than DBT-DINO across most false-positive thresholds. (B) Detection rates of DBT-DINO and DINOv2 for lesions that were ultimately found to be benign (n = 70) and lesions that were found to be cancerous (n = 66). Error bars represent 95% CIs estimated via patient-level bootstrapping with 1000 repetitions. Both models showed similar detection rates for cancerous lesions, whereas DINOv2 detected more benign lesions than DBT-DINO. (C) Example bounding box predictions for DBT-DINO and DINOv2 on the detection test set. Each image is a single two-dimensional section from a three-dimensional digital breast tomosynthesis volume; the first column shows a mediolateral oblique view, and the second and third columns show craniocaudal views. Both models struggled to detect very small lesions, such as the 3-mm-diameter lesion shown in the first column. FP = false positive.
Breast
DBT-based foundational model classifies breast density
Ct Contrast
CT
Liebel-Flarsheim recalls Optiray CT contrast agent
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Early CTA leads to improved stroke outcomes for patients with BCVI
By Amerigo Allegretto
Early CTA is linked to reduced stroke, decreased complications, and reduced intensive care unit length of stay.
August 5, 2026
Ct Scanner 400
Most histotripsy procedures used for metastatic disease treatment
By Amerigo Allegretto
Trends suggest that histotripsy has low rates of procedure-related complications and is mostly performed in outpatient settings.
August 5, 2026
Liver Cancer 400
Imaging turnaround times continued to climb in 2024
By Erik L. Ridley
The largest increases were found in ultrasound and x-ray.
August 4, 2026
Radiologist Computer Screen X Ray
DBT-based foundational model classifies breast density
By Amerigo Allegretto
DBT-DINO showed strong performance in classifying breast density from DBT images.
August 4, 2026
(A) Free-response receiver operating characteristic (FROC) curve for DBT-DINO and DINOv2 (Meta AI) on the detection task. DINOv2 achieved higher sensitivity than DBT-DINO across most false-positive thresholds. (B) Detection rates of DBT-DINO and DINOv2 for lesions that were ultimately found to be benign (n = 70) and lesions that were found to be cancerous (n = 66). Error bars represent 95% CIs estimated via patient-level bootstrapping with 1000 repetitions. Both models showed similar detection rates for cancerous lesions, whereas DINOv2 detected more benign lesions than DBT-DINO. (C) Example bounding box predictions for DBT-DINO and DINOv2 on the detection test set. Each image is a single two-dimensional section from a three-dimensional digital breast tomosynthesis volume; the first column shows a mediolateral oblique view, and the second and third columns show craniocaudal views. Both models struggled to detect very small lesions, such as the 3-mm-diameter lesion shown in the first column. FP = false positive.
Liebel-Flarsheim recalls Optiray CT contrast agent
By AuntMinnie.com staff writers
The CT contrast agent may contain particulate matter comprising polyethylene, other plastic materials, stainless steel, and glass.
August 4, 2026
Ct Contrast
Can LLMs fill the communication gap with referring clinicians?
By Will Morton
LLMs could potentially help address multiple persistent pain points in radiology workflow.
August 4, 2026
Ai Head
CT-selected thrombectomy shows 1-year benefit in large-core stroke
By Will Morton
Notably, the TESLA trial used a noncontrast CT (NCCT)-alone patient selection protocol.
August 3, 2026
Aneurysm
MRI-based AI model maps local brain aging
By Amerigo Allegretto
The model showed differences in brain structures for normal cognition, mild cognitive impairment, and Alzheimer’s disease.
August 3, 2026
Mri Scan Brain
Curium to acquire Lantheus in $8 billion deal
By AuntMinnie.com staff writers
The combined company would serve oncology, neurology, and cardiology patients across more than 70 countries.
August 3, 2026
Cash Bills
Surveillance imaging doesn't improve pancreatic cancer survival
By Amerigo Allegretto
Study authors are calling for better strategies for early detection and intervention for pancreatic cysts that become malignant.
August 3, 2026
A.) Rate of imaging utilization during surveillance by year, 2008 to 2022. B.) Rate of endoscopic ultrasound (EUS) and pancreatic surgery per 100 person years, 2008 to 2022.
ED patients prefer empathetic communication for incidental findings
By Amerigo Allegretto
Incorporating patient preferences into communication may improve understanding and follow-up in addressing incidental findings.
July 31, 2026
Emergency 400
PET/MRI detects arterial inflammation in prostate cancer patients
By Will Morton
Androgen deprivation therapy (ADT) is widely used in advanced prostate cancer, yet is associated with increased cardiovascular events such as stroke and heart attacks.
July 31, 2026
Representative axial fused F-18 FDG-PET/MRI images and corresponding anatomic MRI images from a patient imaged at baseline and after initiation of androgen deprivation therapy are shown. Each row displays a distinct vascular territory. White arrows indicate focal areas of increased tracer uptake within the arterial wall, where spherical volumes of interest (VOIs) were placed for maximum standardized uptake value (SUVmax) measurement. Additional VOIs were placed in the superior vena cava and inferior vena cava for blood-pool activity sampling. SUVmax values from the arterial VOIs were extracted on the corresponding PET images and normalized to the blood-pool mean standardized uptake value to derive the maximum target-to-background ratio.
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