Journal: Medical Physics

Article Title: Block‐matching‐based registration to evaluate ultrasound visibility of percutaneous needles in liver‐mimicking phantoms

doi: 10.1002/mp.15305

Figure Lengend Snippet: Experimental set‐up with an ex vivo model of bovine liver and the set of percutaneous needles used. The overview of the set‐up shows the liver sample, US transducer and US machine, as well as the needles used, including: (a) polished stainless steel (1 mm), (b) polished stainless steel (2 mm), (c) sand‐blasted stainless steel (2 mm), (d) EDM stainless steel I (2 mm), (e) EDM stainless steel II (2 mm), (f) nitinol (2 mm), (g) trocar (18G), (h) chiba (22G), and (i) RFA (2 mm) needles. The kerfed needles are shown in a cross‐sectional view, D1 and E1, where a 1 = a 2 = 1 mm, b 1 = b 2 = 0.5 mm, and c 2 = 45° × 0.2 mm

Article Snippet: Three of them were commercially available: 18G needle (Trocar, Cook Medical, Bloomington, IN, USA), 22G needle (Chiba, Angiomed, Karlsruhe, Germany), and a 2 mm RFA needle (RITA StarBurst, AngioDynamics, Inc, Manchester, GA, USA).

Techniques: Ex Vivo

Journal: Medical Physics

Article Title: Block‐matching‐based registration to evaluate ultrasound visibility of percutaneous needles in liver‐mimicking phantoms

doi: 10.1002/mp.15305

Figure Lengend Snippet: Needle visibility in PVA as a function of the insertion angle, showing means as black lines and mean ± standard deviations as colored bands, based on five measurements per condition. Abbreviations: Chiba‐u 22G, Chiba needle; CNR, contrast‐to‐noise ratio; Niti‐u 2 mm, nitinol needle; RFA‐u 2 mm: RFA needle; Steel‐edm1 2 mm, EDM stainless steel I needle; Steel‐edm2 2 mm, EDM stainless steel II needle; Steel‐p1 1 mm, polished stainless steel needle; Steel‐p2 2 mm, polished stainless steel needle; Steel‐sb 2 mm, sand‐blasted stainless steel needle; Trocar‐u 18G, trocar needle

Article Snippet: Three of them were commercially available: 18G needle (Trocar, Cook Medical, Bloomington, IN, USA), 22G needle (Chiba, Angiomed, Karlsruhe, Germany), and a 2 mm RFA needle (RITA StarBurst, AngioDynamics, Inc, Manchester, GA, USA).

Techniques:

Journal: Medical Physics

Article Title: Block‐matching‐based registration to evaluate ultrasound visibility of percutaneous needles in liver‐mimicking phantoms

doi: 10.1002/mp.15305

Figure Lengend Snippet: Needle visibility in liver tissue as a function of the insertion angle, showing means as black lines and mean ± standard deviations as colored bands, based on 10 measurements per condition. Abbreviations: Chiba‐u 22G, Chiba needle; CNR , contrast‐to‐noise ratio; Niti‐u 2 mm, nitinol needle; RFA‐u 2 mm, RFA needle; Steel‐edm1 2 mm, EDM stainless steel I needle; Steel‐edm2 2 mm, EDM stainless steel II needle; Steel‐p1 1 mm, polished stainless steel needle; Steel‐p2 2 mm, polished stainless steel needle; Steel‐sb 2 mm, sand‐blasted stainless steel needle; Trocar‐u 18G, trocar needle

Article Snippet: Three of them were commercially available: 18G needle (Trocar, Cook Medical, Bloomington, IN, USA), 22G needle (Chiba, Angiomed, Karlsruhe, Germany), and a 2 mm RFA needle (RITA StarBurst, AngioDynamics, Inc, Manchester, GA, USA).

Techniques:

Journal: Medical Physics

Article Title: Block‐matching‐based registration to evaluate ultrasound visibility of percutaneous needles in liver‐mimicking phantoms

doi: 10.1002/mp.15305

Figure Lengend Snippet: Comparison between the areas defined by the CNR value according to the insertion angle of the needle in the PVA model. The values of the area of visibility have been normalized to their maximum value (1,975.076 CNR*degree). Abbreviations: Chiba‐u 22G, Chiba needle; Niti‐u 2 mm, nitinol needle; RFA‐u 2 mm, RFA needle; Steel‐edm1 2 mm, EDM stainless steel I needle; Steel‐edm2 2 mm, EDM stainless steel II needle; Steel‐p1 1 mm, polished stainless steel needle; Steel‐p2 2 mm, polished stainless steel needle; Steel‐sb 2 mm, sand‐blasted stainless steel needle; Trocar‐u 18G, trocar needle

Article Snippet: Three of them were commercially available: 18G needle (Trocar, Cook Medical, Bloomington, IN, USA), 22G needle (Chiba, Angiomed, Karlsruhe, Germany), and a 2 mm RFA needle (RITA StarBurst, AngioDynamics, Inc, Manchester, GA, USA).

Techniques: Comparison

Journal: Medical Physics

Article Title: Block‐matching‐based registration to evaluate ultrasound visibility of percutaneous needles in liver‐mimicking phantoms

doi: 10.1002/mp.15305

Figure Lengend Snippet: Comparison between the areas defined by the CNR value according to the insertion angle of the needle in liver tissue. The values of the area of visibility have been normalized to their maximum value (3,129.562 CNR*degree). Abbreviations: Chiba‐u 22G, Chiba needle; Niti‐u 2 mm, nitinol needle; RFA‐u 2 mm, RFA needle; Steel‐edm1 2 mm, EDM stainless steel I needle; Steel‐edm2 2 mm, EDM stainless steel II needle; Steel‐p1 1 mm, polished stainless steel needle; Steel‐p2 2 mm, polished stainless steel needle; Steel‐sb 2 mm, sand‐blasted stainless steel needle; Trocar‐u 18G, trocar needle

Article Snippet: Three of them were commercially available: 18G needle (Trocar, Cook Medical, Bloomington, IN, USA), 22G needle (Chiba, Angiomed, Karlsruhe, Germany), and a 2 mm RFA needle (RITA StarBurst, AngioDynamics, Inc, Manchester, GA, USA).

Techniques: Comparison

Journal: Medical Physics

Article Title: Block‐matching‐based registration to evaluate ultrasound visibility of percutaneous needles in liver‐mimicking phantoms

doi: 10.1002/mp.15305

Figure Lengend Snippet: Features of percutaneous needles included in the study

Article Snippet: Three of them were commercially available: 18G needle (Trocar, Cook Medical, Bloomington, IN, USA), 22G needle (Chiba, Angiomed, Karlsruhe, Germany), and a 2 mm RFA needle (RITA StarBurst, AngioDynamics, Inc, Manchester, GA, USA).

Techniques: