A Study of Left Whole Breast Irradiation with Deep Inhalation Cardiac Dose Reduction Method Using Infrared Rangefinder

A Study of Left Whole Breast Irradiation with Deep Inhalation Cardiac Dose Reduction Method Using Infrared Rangefinder - A Study of Left Whole Breast Irradiation with Deep Inhalation Cardiac Dose Reduction Method Using Infrared Rangefinder

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000042888

Enrollment

Registered

2021-01-04

Start date

2020-12-22

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Interventions

Irradiate during inhalation using an infrared distance meter.

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: The patient had a partial left mastectomy and was undergoing whole breast irradiation. The patient has a left nipple (not after papillotomy). The patient is between 20 and 60 years old at the time of the first visit to our department. ECOG PS is 0 or 1. The patient can hold his/her breath for more than 20 seconds.

Exclusion criteria

Exclusion criteria: Pain prevents the patient from maintaining external rest for 10 minutes. Has a history of active collagen disease. She is pregnant. Has a postoperative pacemaker.

Design outcomes

Primary

Measure	Time frame
Inhalation reproducibility when irradiated during inhalation using an infrared distance meter	—

Countries

Japan

Contacts

Public ContactMasaki Oshima

Juntendo university Department of Radiation Oncology

msoosima@juntendo.ac.jp0338133111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026