Ultrasound–Unenhanced CT Fusion for Detection and Localization of Ureteral Stones

Bercovich, E.; Leiderman, Maxim; Beck-Razi, Nira; Gaitini, Diana; Javitt, Marcia C.

doi:10.2214/ajr.17.17840

Cited by 7 publications

(5 citation statements)

References 6 publications

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“…CTU can not only clearly display the adjacent organs around the kidney, such as colon, diaphragm, pleura, liver, and spleen, but also clearly show all levels of renal arteries and associated veins in cortical and medullary phase and renal pelvis and calyx in secretory phase, which attaches importance to distinguishing calyx stenosis, calyx diverticulum, and pyelogenic cyst. Therefore, the application of CTU can not only help to select the target calyx but also reduce the damage to blood vessels and surrounding organs during operation [ 25 , 26 ]. Because the patient is in supine position during CTU and prone position during PCNL, the anatomical position of kidney and surrounding organs will change slightly, so intraoperative puncture should be combined with the Doppler ultrasound fine-tuning puncture path to avoid the injury of adjacent organs [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

Application of CTU-Assisted Doppler Ultrasound Puncture in Nontube Percutaneous Nephrolithotomy, Its Effect on Patients’ Complications, and Its Clinical Value

Liu

Jia

et al. 2022

BioMed Research International

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Objective. To research the application of CTU-assisted Doppler ultrasound puncture in uncatheterized PCNL, its influence on patients’ complications, and its clinical value in a case-control study. Methods. One hundred and forty-four patients who went through percutaneous nephrolithotomy (PCNL) from March 2019 to June 2021 in our hospital were arbitrarily assigned into the CTU group ( n = 72 ) and CT plain scan group ( n = 72 ). CTA+CTU was adopted to determine the puncture passage in the CTU group, and CT scan was employed in the CT group. The intraoperative blood loss, postoperative blood loss, operation time, hospital stay, primary stone removal rate, and the incidence of intraoperative and postoperative complications were compared. The visual analogue score (VAS) was employed to assess the degree of postoperative wound pain. Results. The first-stage stone removal rate in the CTU group was 95.83% (69/72), which was remarkably higher compared to the CT plain scan group, which was 81.94% (59/72), and the difference was statistically significant ( P < 0.05 ). The overall rates of intraoperative complications were 6.94% (5/72) in the CTU group and 18.06% (13/72) in the CT plain scan group, respectively, which exhibited great differences ( P < 0.05 ). In addition, the overall rates of intraoperative complications were 2.78% (2/72) in the CTU and 13.89% (10/72) in the CT plain scan group, respectively, and the difference was statistically significant ( P < 0.05 ). The operation time and postoperative hospital stays in the CTU group were remarkably shorter compared to the CT group, and the difference was statistically significant ( P < 0.05 ). The intraoperative and postoperative blood loss of CTU group displayed obvious less than that of the CT group, and the difference was statistically significant ( P < 0.05 ). The VAS were compared 24 hours after surgery. After operation, the VAS of 24 hours after operation in the CTU group ( 0.92 ± 0.12 ) were remarkably lower compared to the CT group ( 1.22 ± 0.15 ), and the difference was statistically significant ( P < 0.05 ). Discussion. PCNL is constantly being optimized by CTU-assisted Doppler ultrasound puncture to improve stone clearance rates, reduce postoperative bleeding, be less painful, provide rapid recovery, and provide safe and feasible results. It is therefore worthwhile to standardize and then widely promote it in clinical practice.

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Section: Discussionmentioning

confidence: 99%

Application of CTU-Assisted Doppler Ultrasound Puncture in Nontube Percutaneous Nephrolithotomy, Its Effect on Patients’ Complications, and Its Clinical Value

Liu

Jia

et al. 2022

BioMed Research International

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“…Technically challenging procedures involving targets that are incompletely characterized or inaccessible can now be performed with relative ease using cross-sectional imaging superimposed upon real-time US. Indeed, since the earliest studies were conducted nearly 2 decades ago, 10 fusion has been implemented in a wide range of clinical settings, from radiofrequency ablation, 11 to biopsy, 9 to detection and localization of ureteral stones 12 …”

Section: Discussionmentioning

confidence: 99%

“…Indeed, since the earliest studies were conducted nearly 2 decades ago, 10 fusion has been implemented in a wide range of clinical settings, from radiofrequency ablation, 11 to biopsy, 9 to detection and localization of ureteral stones. 12 Fusion-guided percutaneous biopsy is most commonly performed by juxtaposing contrast-enhanced CT or MRI scans on realtime B-mode US. 13 Coregistration of cross-sectional images with US provides far superior tissue contrast resolution than B-mode US alone, allowing for localization of targets that would otherwise remain poorly visualized.…”

Section: Discussionmentioning

confidence: 99%

PET/CT Ultrasound Fusion for Percutaneous Biopsy

2022

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The aim of this study was to assess the diagnostic yield and complication rate of 18 F-FDG PET/CTultrasound (US) fusion for percutaneous biopsy of FDG-avid lesions among patients with known or suspected malignancy. Patients and Methods: We describe the clinical, imaging, and histopathologic features of 36 patients who underwent percutaneous biopsy using realtime PET/CT US fusion. In addition, we review the literature on PET/CT US fusion. Using Medline, the following MeSH terms were searched and relevant citations assessed: "fusion imaging," "PET/CT fusion," "PET/CT-guided biopsy," "PET/US fusion," "ultrasound fusion," and "ultrasound fusionguided biopsy." Results: A total of 36 patients (15 men, 21 women) with known or suspected malignancy and prior PET/CT imaging underwent percutaneous biopsy of FDG-avid lesions using PET/CT US fusion between October 2014 and July 2020. Coregistration was achieved using General Electric LOGIQ E9 software. Adequate tissue for analysis was obtained in all 36 patients. Histologic evaluation revealed malignancy in 14 patients (38.9%) and nonneoplastic tissue in 22 patients (61.1%). No intraprocedural or postprocedural complications were recorded. Conclusions: Fusion of PET/CT and US for percutaneous biopsy of FDGavid lesions can be used to achieve excellent diagnostic yield with a low risk of complications.

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“…It also permits navigation using real-time US for focal therapy such as for prostate cancer, based on the previously detected lesions in other modalities ( Figure 4 ). 25 , 26 …”

Section: From the Shadows New Modalities Arisementioning

confidence: 99%

Medical Imaging: From Roentgen to the Digital Revolution, and Beyond

Bercovich¹,

Javitt²

2018

Rambam Maimonides Med J

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Today medical imaging is an essential component of the entire health-care continuum, from wellness and screening, to early diagnosis, treatment selection, and follow-up. Patient triage in both acute care and chronic disease, imaging-guided interventions, and optimization of treatment planning are now integrated into routine clinical practice in all subspecialties. This paper provides a brief review of major milestones in medical imaging from its inception to date, with a few considerations regarding future directions in this important field.

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Ultrasound–Unenhanced CT Fusion for Detection and Localization of Ureteral Stones

Abstract: Of the 25 stones founds on unenhanced CT studies, 22 (88%) were confidently identified using US-unenhanced CT fusion within 72 hours after the initial CT scan was obtained. US-unenhanced CT fusion might obviate the need for repeated CT scans for monitoring urolithiasis.

Cited by 7 publications

References 6 publications

Application of CTU-Assisted Doppler Ultrasound Puncture in Nontube Percutaneous Nephrolithotomy, Its Effect on Patients’ Complications, and Its Clinical Value

Application of CTU-Assisted Doppler Ultrasound Puncture in Nontube Percutaneous Nephrolithotomy, Its Effect on Patients’ Complications, and Its Clinical Value

PET/CT Ultrasound Fusion for Percutaneous Biopsy

Medical Imaging: From Roentgen to the Digital Revolution, and Beyond

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