Journal of Vascular and Interventional Radiology : JVIR

PURPOSE: To investigate the effect of patient and tumor-specific characteristics on the size of immediate phase lung microwave ablation (MWA) zone and establish a prediction model. METHODS AND MATERIALS: This IRB-approved, HIPAA compliant cohort included 164 lesions from 99 patients who underwent CT-guided lung MWA and the two-dimensional elliptical ground-glass opacity ablation zone was measured. Duration, maximum temperature, tumor depth, presence of emphysema, history of ipsilateral lung ablation, surgery, and radiation were recorded...

Realistic simulation models for interventional radiology procedures are limited, including for placement of double-J stents (DJS). Utilizing a porcine kidney and empty saline bag (bladder), an ex-vivo model aiming to improve operator's knowledge and confidence in performing a DJS procedure was developed. Six faculty and fourteen trainees successfully operated on the model. Mean results for faculty vs. trainees are as follows: 2.2 ± 1.5 vs 2.4 ± 1.9 puncture attempts to access collecting system (p = 0...

PURPOSE: The aim of this study was to use calculated aldosterone concentration in the right adrenal vein (RAV) (cAldoRAV ) for identifying the dominant side of aldosterone secretion in patients with primary aldosteronism undergoing adrenocorticotropic hormone-stimulated adrenal venous sampling (AVS). MATERIALS AND METHODS: Patients with primary aldosteronism who had successful AVS (selectivity index > 3) were studied. Based on the assumption that cortisol production from both adrenal glands is equal, aldosterone concentration in the RAV was calculated by using the data from left adrenal vein (LAV) and inferior vena cava...

No abstract text is available yet for this article.

PURPOSE: This study aimed to compare the safety and effectiveness N-butyl cyanoacrylate (NBCA)-lipiodol mixture (NL) and NBCA-lipiodol-ethanol mixture (NLE) embolization for Type II endoleak (T2EL) after endovascular aortic repair (EVAR). MATERIALS AND METHODS: This study included 32 patients with 49 procedures who underwent T2EL embolization between January 2008 and June 2022. Cases with no follow-up after embolization, technical failure, treatment with coil only, T1EL at the embolization, and re-embolization were excluded...

This retrospective study evaluates the feasibility, safety, and short-term efficacy of PAE using n-BCA glue embolization in 244 patients from June 2022 through May 2024. Technical success, defined as bilateral glue embolization, was achieved in 95% of cases. The median fluoroscopy time was 22.2 (IQR: 17.1 - 30.0) minutes, and the median radiation dose was 753 (IQR: 417 - 1559) mGy. Compared to baseline, statistically significant improvements were observed at 7.1 weeks for the IPSS (9.5 ± 6.0 [SD] vs. 20...

PURPOSE: To compare the efficacy of two track sealing techniques following CT-guided lung biopsy, using either gelatin sponge slurry (GSS) or saline to reduce the rate of post-biopsy pneumothorax. MATERIALS AND METHODS: In this prospective study, patients referred for a CT-guided lung biopsy, in whom the needle would pass through aerated lung, were randomly assigned to receive either GSS or saline track sealing technique in a 1:1 ratio. All biopsies were performed using a 19-gauge coaxial needle in a tertiary hospital by one of four interventional radiologists with varying levels of experience...

This brief report reviews the clinical, procedural, and imaging data of seven patients with p.Arg4810Lys variant of the ring finger protein 213 gene (RNF213)-related peripheral pulmonary arterial stenosis (PPAS) who underwent percutaneous transluminal pulmonary angioplasties (PTPAs) for demographics, clinical presentation, indications for BPA, and procedural and clinical outcomes. During median follow-up of 64.4 months since the first confirmed diagnosis, PTPA was performed for 62 segmental pulmonary arteries with 38 sessions of the procedure in seven patients...

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PURPOSE: This study aimed to validate the correlation between the Global Limb Anatomic Staging System (GLASS) and primary limb-based patency (LBP) and to identify the risk factors associated with LBP loss. MATERIALS AND METHODS: A single-center retrospective analysis was performed on patients with chronic limb-threatening ischemia (CLTI) who underwent endovascular therapy (EVT) between January 2018 and May 2022. All lesions were categorized into three groups (GLASS I, II, and III)...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

PURPOSE: To utilize voxel-based dosimetry following radiation segmentectomy to understand microsphere distribution and validate current literature regarding radiologic and pathologic outcomes. METHODS: A retrospective, single-center analysis of solitary HCC patients (n=56) treated with Y90 radiation segmentectomy with glass microspheres (TheraSphere; Boston Scientific, Marlborough, MA, USA) from 2020 to 2022 was performed. Post-treatment voxel-based dosimetry was evaluated using Mirada DBx Build 1...

PURPOSE: To assess immunogenic effects in unembolized contralateral tumor after single lobar Y90-radioembolization (SIRT) of colorectal liver metastases(CRLM). MATERIAL AND METHODS: The analysis comprised 10 patients with microsatellite stable (MSS) CRLM scheduled for staged treatment in the prospective BLINDED trial. Eligibility criteria included bilobar metastatic disease with >5 lesions without any treatment within 3 weeks. Baseline biopsy was followed by initial SIRT treatment of one liver lobe, followed by a second biopsy of yet untreated tumors in the other liver lobe at a median of 13 (4-49) days immediately prior to second treatment...

PURPOSE: To evaluate the feasibility of intraoperative neurophysiological monitoring (IONM) during MRI-guided ablations and identify strategies to reduce IONM electrode radiofrequency (RF)-heating during MRI. MATERIALS AND METHODS: Ex vivo experiments with a porcine tissue phantom simulating a typical high RF-heating risk IONM setup during an MRI-guided ablation procedure on the shoulder were performed on a 1.5 T scanner. Mutual interference between MRI and IONM was evaluated...

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No abstract text is available yet for this article.

PURPOSE: To characterize the response and survival outcomes of yttrium-90 transarterial radioembolization (90Y-TARE) for unresectable, liver-dominant metastases from primary neoplasms other than colorectal carcinoma. MATERIALS AND METHODS: This study included 1474 patients enrolled in the RESiN registry who received resin 90Y-TARE as part of their oncologic management for unresectable primary or secondary liver tumors (NCT02685631). 33% (481/1474) were treated for liver metastases of non-colorectal origin (m-nonCRC), compared to 34% (497/1474) treated for colorectal liver metastases (mCRC) and 34% (496/1474) treated for hepatocellular carcinoma (HCC)...

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PURPOSE: To compare oncologic outcomes of transarterial chemoembolization (TACE) using 70-150 μm and 100-300 μm drug-eluting beads (DEBs) to treat small hepatocellular carcinoma (HCC). METHODS: This retrospective study included 93 patients with small HCC (≤3cm) who underwent first TACE with DEB: 43 with 70-150 μm DEBs and 50 with 100-300 μm DEBs. Initial tumor response was assessed using per-patient and per-lesion analysis. Progression-free survival (PFS) and target tumor PFS were analyzed for patients and lesions with initial complete response (CR)...