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Young S, Abamyan A, Goldberg D, Hannallah J, Schaub D, Kalarn S, Fitzgerald Z, Woodhead G. Cryoablation in the liver: how accurately does the iceball predict the ablation zone? Abdom Radiol (NY) 2024; 49:625-630. [PMID: 38036773 DOI: 10.1007/s00261-023-04117-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023]
Abstract
PURPOSE To evaluate the accuracy with which the iceball predicts the realized ablation zone in patients undergoing cryoablation of the liver. MATERIALS AND METHODS Continuous patients who underwent cryoablation of primary or secondary malignancies of the liver were retrospectively reviewed. Iceball and ablation zone dimensions on 1 month follow up imaging were collected in three orientations, the long axis (LA), perpendicular transverse (PTR), and perpendicular craniocaudal (PCC). Factors which may predict differences in the measurements were evaluated with regression analysis. Oncologic outcomes were also collected. RESULTS The mean size of the iceball was 5.5 ± 1.1 cm, 3.9 ± 1.1 cm, and 4.4 ± 1.4 cm in the LA, PTR, and PCC orientations, respectively. The mean size of the one-month ablation cavity was 4.3 ± 1.3 cm, 3 ± 1.1 cm, and 3 ± 1.3 cm in the LA, PTR, and PCC orientations, respectively. The iceball was significantly larger than the ablation zone in all orientations (p < 0.001). When comparing HCC and non-HCC patients the Kaplan-Meier analysis of TTLP, the Kaplan Meier curves deviated significantly (p = 0.015, HR 2.26 (95%CI 1.17-4.37)). When a similar analysis was performed looking at TTP again the curves diverged significantly (p = 0.002, HR 2.4 (95%CI 1.37-4.19)). CONCLUSION The iceball seems to overestimate the realized ablation zone by about 1 cm in all orientations during hepatic cryoablation.
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Affiliation(s)
- Shamar Young
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA.
| | - Art Abamyan
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Dan Goldberg
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Jack Hannallah
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - David Schaub
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Salil Kalarn
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Zachary Fitzgerald
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
| | - Gregory Woodhead
- Division of Interventional Radiology, Department of Radiology, University of Arizona, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ, 85724, USA
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Ablation zone considerations in cryoablation of RCC: accuracy of manufacturer provided model and change from first to second freeze cycle. Clin Imaging 2022; 89:10-15. [DOI: 10.1016/j.clinimag.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 11/17/2022]
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Gong Y, Li S. Diagnostic Value of Color Doppler Ultrasound Combined with Superb Microvascular Imaging in the Detection of Small Renal Tumors Less than 3 cm Treated with Jinkui Shenqi Pills. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:5327331. [PMID: 34512778 PMCID: PMC8433002 DOI: 10.1155/2021/5327331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/24/2021] [Indexed: 11/18/2022]
Abstract
The purpose of this study was to investigate the diagnostic value of color Doppler ultrasound combined with superb microvascular imaging (SMI) in the detection of small renal tumors less than 3 cm treated with Jinkui Shenqi pills. 50 cases were randomly selected from the patients with angioleiomyoma (a kind of small renal tumor) less than 3 cm confirmed by pathological examination and treated in our hospital from January 2018 to January 2020. All patients were treated with Jinkui Shenqi pills. All patients were first detected by color Doppler ultrasound and then by SMI. The results of color Doppler ultrasound were used as the control group, while those of color Doppler ultrasound combined with SMI were used as the experimental group. After that, the specificity, sensitivity, positive and negative detection results, and detection accuracy were compared between the two groups. The specificity and sensitivity in the experimental group were significantly higher than those in the control group, with statistical significance (P < 0.05). The cases of positive and negative detection results in the experimental group were significantly higher than those in the control group, with statistical significance (P < 0.05). The detection accuracy in the experimental group was significantly higher than that in the control group, with statistical significance (P < 0.05). The specificity, sensitivity, positive and negative detection results, and detection accuracy of color Doppler ultrasound combined with SMI in the detection of small renal tumors less than 3 cm treated with Jinkui Shenqi pills were all significantly higher than those of color Doppler ultrasound; therefore, the application of color Doppler ultrasound combined with SMI for the diagnosis of small renal tumors is of high value.
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Affiliation(s)
- Yuping Gong
- Department of Ultrasonic Imaging, Traditional Chinese Medicine Hospital of China Three Gorges University, Yichang Traditional Chinese Medicine Hospital, Yichang 443000, Hubei Province, China
| | - Shuhui Li
- Department of Nephropathy, The People's Hospital Attached to Sanxia (Three Gorges) University, The First Hospital of Yichang, Yichang 443000, Hubei Province, China
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Active Versus Passive Thaw Following Percutaneous Cryoablation of Pulmonary Tumors: Effect on Incidence, Grade, and Onset of Hemoptysis. AJR Am J Roentgenol 2021; 217:1153-1163. [PMID: 34008999 DOI: 10.2214/ajr.21.25872] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background: Hemoptysis is common following percutaneous image-guided cryoablation of pulmonary tumors. Objective: To evaluate the effect of a final active thaw on the incidence, grade, and onset of hemoptysis following percutaneous cryoablation of pulmonary tumors. Methods: This retrospective cohort study included 60 consecutive CT-guided cryoablation sessions targeting 95 pulmonary tumors in 47 patients from 2017 to 2020. The final thaw of a triple-freeze protocol was active (electrical, helium-free) in 27/60 sessions (45%, active group) and passive in 33/60 sessions (55%, passive group). Incidence, onset, and management of hemoptysis were recorded using prospectively collected data. Hemoptysis, pneumothorax, and hemothorax within 30 days post ablation were graded per Common Terminology Criteria for Adverse Events version 5.0 (CTCAE). Volume of immediate post-treatment changes on CT was quantified using semi-automated segmentation. Outcomes were compared between groups using generalized estimating equation models. A parsimonious multivariable model for hemoptysis incidence was developed using purposeful selection of predefined covariates followed by bootstrap resampling. Local tumor control was compared between groups using the Kaplan-Meier method and logrank testing. Results: Hemoptysis occurred following 26/60 (43%) sessions and was self-limited (Grade 1) in 22/26 (85%). The incidence of hemoptysis was lower in the active than passive group (64% vs 19%, respectively; p=.002). The odds of hemoptysis adjusted for immediate post-treatment changes were 92% lower in the active group (OR, 0.08 [95% CI, 0.02-0.37], p=.004). The odds of hemoptysis greater than Grade 1 were 79% lower in the active group (OR, 0.21 [95% CI, 0.07-0.64], p=.006). In the active group, the onset of hemoptysis was significantly delayed (OR, 0.75 [95% CI, 0.61-0.91], p=.005). Pneumothorax (p=.60), hemothorax (p=.84), and local tumor control (p=.77) did not differ between groups. Conclusion: Active thaw following the final freeze reduces the incidence and grade of hemoptysis and delays the onset of hemoptysis following percutaneous cryoablation of pulmonary tumors without adversely affecting other procedural complications and local tumor control. Clinical Impact: Active thaw following the final freeze improves the safety profile of triple-freeze cryoablation of pulmonary tumors by reducing the incidence and grade of hemoptysis and by delaying the onset of hemoptysis beyond the immediate recovery period.
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