Percutaneous insertion of bilateral double J in pelvic cancer patients: Indications, complications, technique of antegrade ureteral stenting

PurposeThis study was conducted in order to determine the reproducibility and repeatability of cone-beam computed tomography (CBCT) radiomics features.MethodsThe first-, second-, and fifth-day CBCT images from 10 head and neck (H&N) cancer patients and 10 pelvic cancer patients were retrospectively collected for this study. Eighteen common radiomics features were extracted from the longitudinal CBCT images using two radiomics packages. The reproducibility of CBCT-derived radiomics features was assessed using the first-day image as input and compared across the two software packages. The site-specific intraclass correlation coefficient (ICC) was used to quantitatively assess the agreement between packages. The repeatability of CBCT-based radiomics features was evaluated by comparing the following days of CBCT to the first-day image and quantified using site-specific concordance correlation coefficient (CCC). Furthermore, the correlation with volume for all the features was assessed with linear regression and R2 as correlation parameters.ResultsThe first-order histogram-based features such as skewness and entropy showed good agreement computed in either software package (ICCs ≥ 0.80), while the kurtosis measurements were consistent in H&N patients between the two software tools but not in pelvic cases. The ICCs for GLCM-based features showed good agreement (ICCs ≥ 0.80) between packages in both H&N and pelvic groups except for the GLCM-correction. The GLRLM-based texture features were overall less consistent as calculated by the two different software packages compared with the GLCM-based features. The CCC values of all first-order and second-order GLCM features (except GLCM-energy) were all above 0.80 from the 2-day part test–retest set, while the CCC values all dropped below the cutoff after 5-day treatment scans. All first-order histogram-based and GLCM-texture-based features were not highly correlated with volume, while two GLRLM features, in both H&N and pelvic cohorts, showed R2 ≥0.8, meaning a high correlation with volume.ConclusionThe reproducibility and repeatability of CBCT-based radiomics features were assessed and compared for the first time on both H&N and pelvic sites. There were overlaps of stable features in both disease sites, yet the overall stability of radiomics features may be disease-/protocol-specific and a function of time between scans.

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SU-E-J-125: A Novel IMRT Planning Technique to Spare Sacral Bone Marrow in Pelvic Cancer Patients

Medical Physics ◽

10.1118/1.4924211 ◽

2015 ◽

Vol 42 (6Part9) ◽

pp. 3293-3293

Author(s):

S McGuire ◽

S Bhatia ◽

W Sun ◽

Y Menda ◽

L Ponto ◽

...

Keyword(s):

Bone Marrow ◽

Cancer Patients ◽

Pelvic Cancer ◽

Planning Technique ◽

Imrt Planning ◽

Sacral Bone

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PO-1875 Commissioning of an MR only dose planning paradigm for use with pelvic cancer patients

Radiotherapy and Oncology ◽

10.1016/s0167-8140(21)08326-2 ◽

2021 ◽

Vol 161 ◽

pp. S1597

Author(s):

S. McIlroy ◽

M. Berg ◽

H. Nissen

Keyword(s):

Cancer Patients ◽

Dose Planning ◽

Pelvic Cancer

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Pain Mechanisms Involved and Outcome in Advanced Cancer Patients with Possible Indications for Celiac Plexus Block and Superior Hypogastric Plexus Block

Tumori Journal ◽

10.1177/030089160208800311 ◽

2002 ◽

Vol 88 (3) ◽

pp. 243-245 ◽

Cited By ~ 26

Author(s):

Sebastiano Mercadante ◽

Fabio Fulfaro ◽

Alessandra Casuccio

Keyword(s):

Pancreatic Cancer ◽

Cancer Patients ◽

Advanced Cancer ◽

Celiac Plexus ◽

Celiac Plexus Block ◽

Advanced Cancer Patients ◽

Pain Mechanisms ◽

Pelvic Cancer ◽

Plexus Block ◽

Prospective Longitudinal

Aims and Background There is controversy about the role of neurolytic sympathetic blocks in advanced cancer, when pain syndromes may assume other characteristics, with a possible involvement of structures other than visceral. The aim of the present study was to assess the pain characteristics and the analgesic response of a consecutive sample of home care patients with pancreatic and pelvic pain, which would have possible indications for a celiac plexus block and a superior hypogastric block, respectively. Methods From January 1999 to December 1999, 400 consecutive advanced cancer patients were surveyed for a prospective longitudinal survey. We considered only patients who had pancreatic cancer or pelvic cancer with pain. Results Thirty-six patients were surveyed: 22 patients had pelvic cancers and 14 had pancreatic cancer. Patients with pelvic cancers showed a longer survival than those with pancreatic cancer (P = 0.019). Patients with pelvic cancers more frequently showed a neuropathic component associated with a visceral or somatic mechanism than patients with pain due to pancreatic cancer (P = 0.019). When the pain mechanism was taken into consideration, patients with pelvic cancers with a neuropathic component showed worse pain relief than patients with pain due to pancreatic cancer (P = 0.040). Conclusions Sympathetic procedures for pain conditions due to pancreatic and pelvic cancers should be intended as adjuvant techniques to reduce the analgesic consumption, and not as a panacea, given that multiple pain mechanisms are often involved because progression of disease is able to change the underlying pain mechanisms. Pancreatic pain seems to maintain visceral characteristics amenable to sympathetic block more than pain due to pelvic cancer.

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